Singer Steven Tyler performs during the 4th Annual MusiCares Map Fund Benefit Concert at The Music Box at Fonda Theater on May 9, 2008 in Los Angeles, California. (Kevin Winter, Getty Images)

Aerosmith rocker Steven Tyler is cleaning out his closet for charity, giving fans the chance to own clothing items he has worn.

Julien’s Auctions will sell off T-shirts, suits and memorabilia Tyler has donated in New York on November 21st. The cash raised will benefit the MusiCares MAP Fund, which provides addiction recovery resources to musicians in need.

Tyler, a former MusiCares MAP Fund honoree - for his efforts to assist other addicts on their journey to recovery - says, "This is a personal gesture - a way for me to literally dive into my closet and give back."

"Even my skivvies are going up for auction in support of MusiCares."

And he has recruited a bunch of famous friends, like Sir Paul McCartney, Ron Wood, and Metallica star James Hetfield to help him raise charity cash by donating items for the Hard Rock Cafe auction.

McCartney has offered up a signed Hofner Bass and Wood has donated a painting.