Britney’s Good Deed

From left: Jenny McCarthy, Jim Carrey and Britney Spears Photo by: Todd Williamson / WireImage

Determined to let go of her hard partying ways, Britney Spears might just have turned over a new leaf.

The pop tart spent her Saturday night putting her star wattage to good use. Spears attended Jim Carrey and Jenny McCarthy’s fundraising event, Generation Rescue. The star-studded charity fete was in honor of autism research.

Britney was in good company. Among the evening’s fellow do-gooders were newlyweds Charlie Sheen and Brooke Mueller and “lovey-dovey” couple Robert Rodriguez and Rose McGowan.

"[Britney] looked great and seemed really happy," one fellow partygoer told People Magazine.