Keith Urban [ tickets ], Tim McGraw [ tickets ], Donna Summer [ tickets ] and members of Nickelback, The Offspring [ tickets ] and The Red Hot Chili Peppers [ tickets ] are among the artists participating in a benefit auction for Lit [ tickets ] drummer Allen Shellenberger, who was recently diagnosed with a grade 4 malignant brain tumor.

The auction, sponsored by The Make A Noise Foundation through Ebay's Giving Works Program, will include autographed items by various celebrities and musicians including an archive-quality signed and numbered giclee of a painting by actor Pierce Brosnan, a custom tattoo session by Aces High, a guitar lesson with Steve Vai, a "Baby Taylor" guitar autographed by McGraw, a "Knocked Up" movie poster signed by Judd Apatow and member of the cast and a dinner with Lit.

Other items available during the Ebay auction include: an original lithograph by Summer; a guitar autographed by members of Stained; an amplifier autographed by members of No Doubt, Sugar Ray and Lit; drum heads by The Offspring; a "Stadium Arcadium" CD signed by all the members of the Red Hot Chili Peppers; autographs from James Taylor, Nickelback and Maroon 5; and many other one-of-a-kind items, according to a press release.

All proceeds from the auction will benefit Shellenberger and Cedars-Sinai's Maxine Dunitz Neurosugical Institute in Los Angeles, where the drummer is being treated.

Despite the diagnosis, Shellenberger, who is pursuing radiation and chemotherapy treatments, is said to be in good spirits and committed to the fight.