Britney takes on the paps and Gaga rocks a baldie in today's daily 411 links.

GOSSIP CENTER: Britney Spears Knocks Paps Out in New Video Teaser

CELEBUZZ: Jay-Z, Will Smith Hang Out on ‘Men in Black III’ Set

X17 ONLINE: Lady Gaga Rocks a Baldie

THE FRISKY: John Hamm, Melissa McCarthy to Play Onscreen Couple in New Comedy