Perry gives a sexy over-the-shoulder glance before performing in London. Plus: Lady Gaga, Ashlee, Pete & Bronx, Zac Efron and more

SPORTS NIGHT

Zac Efron and Leonardo DiCaprio are no fairweather fans! The actors find time for a chat while watching the Los Angeles Lakers beat the Orlando Magic from their usual perch – courtside! – during Game 2 of the NBA Finals Sunday at the Staples Center in Los Angeles.

Find out how the stars score prime Lakers tickets.