Hollywood funnyman Robin Williams and "Slumdog Millionaire" star Freida Pinto have raised a whooping amount in a fundraising drive for former tennis ace Andre Agassi's charity.

Agassi's 15th Annual Grand Slam for Children benefit gala Saturday collected over $8.5 million with the help of stars, including Williams, Pinto and Metallica drummer Lars Ulrich.

Imdb.com reports, a live auction at the event saw six bidders pledge $100, 000 to dine with Williams in San Francisco, California, while Pinto raised $75, 000 by offering a trip to India.

Rocker Ulrich donated drum lessons and tour around his band's studios, attracting a winning bid of $35, 000. The Las Vegas event, benefiting underprivileged youngsters, also featured performances from Sir Elton John, Jason Mraz and Jennifer Hudson.