-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 Xb7glos7WypRp6XXSQpm3g==

<SEC-DOCUMENT>0001437904-10-000031.txt : 20100506
<SEC-HEADER>0001437904-10-000031.hdr.sgml : 20100506
<ACCEPTANCE-DATETIME>20100506121826
ACCESSION NUMBER:		0001437904-10-000031
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20100506
DATE AS OF CHANGE:		20100506
EFFECTIVENESS DATE:		20100506

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MusclePharm Corp
		CENTRAL INDEX KEY:			0001415684
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				770664193
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-141616
		FILM NUMBER:		10805465

	BUSINESS ADDRESS:	
		STREET 1:		3390 PEORIA ST.
		STREET 2:		#307
		CITY:			AURORA
		STATE:			CO
		ZIP:			80010
		BUSINESS PHONE:		(800) 210-7369

	MAIL ADDRESS:	
		STREET 1:		3390 PEORIA ST.
		STREET 2:		#307
		CITY:			AURORA
		STATE:			CO
		ZIP:			80010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Tone in Twenty
		DATE OF NAME CHANGE:	20071018
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0704</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001415684</cik>
        <entityName>MusclePharm Corp</entityName>
        <issuerAddress>
            <street1>3390 Peoria Street</street1>
            <street2>No. 307</street2>
            <city>Aurora</city>
            <stateOrCountry>CO</stateOrCountry>
            <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
            <zipCode>80010</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(800) 210-7369</issuerPhoneNumber>
        <jurisdictionOfInc>NEVADA</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>Tone in Twenty</previousName>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2006</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brad</firstName>
                <middleName>J</middleName>
                <lastName>Pyatt</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3390 Peoria Street</street1>
                <street2>No. 307</street2>
                <city>Aurora</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>President and CEO</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Cory</firstName>
                <lastName>Gregory</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3390 Peoria Street</street1>
                <street2>No. 307</street2>
                <city>Aurora</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Executive Vice President</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Todd</firstName>
                <middleName>E.</middleName>
                <lastName>Huss</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3390 Peoria Street</street1>
                <street2>No. 307</street2>
                <city>Aurora</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chief Financial Officer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Leonard</firstName>
                <middleName>K</middleName>
                <lastName>Armenta</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3390 Peoria Street</street1>
                <street2>No. 307</street2>
                <city>Aurora</city>
                <stateOrCountry>CO</stateOrCountry>
                <stateOrCountryDescription>COLORADO</stateOrCountryDescription>
                <zipCode>80010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chief Operating Officer</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Health Care</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2010-05-05</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
            <isOtherType>true</isOtherType>
            <descriptionOfOtherType>Units consisting of Common Stock and Warrants - 2,000,000 shares and 3 million warrants</descriptionOfOtherType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Shraga Levin</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>420 Crown Street</street1>
                    <city>Brooklyn</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>11225</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>CO</state>
                    <description>COLORADO</description>
                    <state>CT</state>
                    <description>CONNECTICUT</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>NJ</state>
                    <description>NEW JERSEY</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>TX</state>
                    <description>TEXAS</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>1000000</totalOfferingAmount>
            <totalAmountSold>75000</totalAmountSold>
            <totalRemaining>925000</totalRemaining>
            <clarificationOfResponse>Offering of Units with Common Stock and Warrants (2,000,000 shares and 3,000,000 warrants)</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>4</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>35000</dollarAmount>
                <isEstimate>true</isEstimate>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>MusclePharm Corp</issuerName>
                <signatureName>/s/ Brad J. Pyatt</signatureName>
                <nameOfSigner>Brad J Pyatt</nameOfSigner>
                <signatureTitle>President</signatureTitle>
                <signatureDate>2010-05-06</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----