The Grammy nominees make their mark at a charity event in Los Angeles. Plus: Kate Winslet, Jennifer Aniston, Lindsay & Samantha and more

HEART STRINGS

Counting down the days before the Grammys, best new artist nominees the Jonas Brothers – from left, Kevin, Joe and Nick – lend their autographs for a good cause at the Grammy Awards MusiCares event Thursday at L.A.'s Staples Center. The trio will perform at Sunday's big show, airing live on CBS.