Funnyman Larry David is auctioning 20 minutes of his time to raise money for Michael J. Fox's charity.
The highest bidder will win a 20-minute one-on-one 'pitch meeting' to discuss ideas with the Seinfeld co-creator in his office in Santa Monica, California.
The Charity Buzz auction is expected to raise $5,000 (£3,125) for the Michael J. Fox Foundation for Parkinson's Research.
Fox, who was diagnosed with the degenerative disorder in 1991, played his Parkinson's disease for laughs with a cameo role in an episode of David's sitcom Curb Your Enthusiasm that aired on Sunday (11Sep11).