Efron keeps his cool while stepping out solo in Beverly Hills. Plus: Shots from Comic-Con, Jennifer Garner, Ben Affleck, Vanessa Hudgens and more

LIVE IT UP

She's on fire! Jennifer Lopez celebrates her Premios Juventud Award – an entertainment award for Spanish-speaking celebrities, presented by Univision – with beau Casper Smart and pal Pitbull (not pictured) at Miami Beach's Wall nightclub on Thursday night.