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







SEC Form 3, Form 4 and Form 5 and Application for EDGAR Access
(Form ID) Confirmation of Authority to Sign

Pursuant to Instruction 7 to SEC "Form 3 - Initial Statement of Beneficial
Ownership of Security," "Form 4--Statement of Changes in Beneficial Ownership"
and "Form 5 - Annual Statement of Beneficial Ownership of Securities" the
undersigned, being a Trustee of MassMutual Corporate Investors and MassMutual
Participation Investors (each, a "Trust"), hereby appoint and designate (i)
Rosemary Baker (ii) Kelly Schetzel and (iii) Mark Godin, and each of them
singly, my true and lawful power of attorney with full power to (a) apply for
access to the EDGAR filing system in my name and (b) sign for me and file with
the Securities and Exchange Commission, the New York Stock Exchange and the
Trust said SEC Forms 3 4 and/or 5 with respect to shares of the Trust purchased
or sold by the undersigned or any other change of beneficial ownership relating
to equity or derivative securities of the Trust 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:        S/Michael Harlan Brown     July 15, 2005
                           ----------------------------------

Name: Michael Harlan Brown
Title:Trustee, MassMutual Corporate Investors and MassMutual Participation
Investors.


















</TEXT>
</DOCUMENT>
