<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>mrosspipowerofattorney.txt
<TEXT>

SEC Form 3, Form 4 and Form 5 - Confirmation of Authority to Sign

Pursuant to Instruction 7 to SEC "Form 3 - Initial Statement of
Beneficial Ownership of Securities", "Form 4--Statement of Changes
in Beneficial Ownership" and "Form 5 - Annual Statement of
Beneficial Ownership of Securities", the undersigned, being a Vice
President of MassMutual Participation Investors (the "Issuer") and
a Managing Director of Babson Capital Management LLC, investment
adviser to the Issuer, hereby appoints and designates until the
earlier of their removal, resignation, or death, Sara Stinson,
Mark Godin, Melissa Busso, Ruth Howe, and Ann Malloy, each as my
true and lawful attorneys in fact with full power to sign for me
and file with the Securities and Exchange Commission, the
New York Stock Exchange, and the Issuer said SEC Forms 3, 4
and/or 5 with respect my relationship with the Issuer and any
shares of the Issuer purchased or sold by the undersigned and
any other change of beneficial ownership relating to equity
or derivative securities of the Issuer required to be reported
by the undersigned.

This authorization shall remain in effect until a written
revocation is executed by the undersigned and filed with
the Securities and Exchange Commission.


Signature and Date:     Michael Ross            June 21, 2007
               ----------------------------------------------------------------

Name:             Michael Ross
Title:            Member of the Board of Managers of
                  Babson Capital Management LLC

















</TEXT>
</DOCUMENT>
