Nick Jonas performs at G-A-Y nightclub in London on Saturday.
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Rihanna struts courtside at the NBA All-Star Game on Sunday in New York.
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Kelly Clarkson leaves her London hotel on Saturday.
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Kim Kardashian totes North West at JFK Airport on Sunday.
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Adam Sandler arrives at a hotel in New York on Sunday.
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Margot Robbie and Will Smith attend the closing night of Festival di Sanremo in Sanremo, Italy, on Saturday.
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Keira Knightley attends the Writers Guild Awards in Century City, Calif., on Saturday.
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Michael Sheen and Sarah Silverman attend the Writers Guild Awards in New York on Saturday.
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Scott Foley and honoree Shonda Rhimes attend the Writers Guild Awards on Saturday in Century City, California.
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Ben Stiller and Christine Taylor sit courtside at the NBA All-Star Game on Sunday in New York.
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Sir Patrick Stewart arrives at the Writers Guild Awards on Saturday in Century City, Calif.
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Jessie J performs in Miami on Sunday.
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Lisa Kudrow arrives at the Writers Guild Awards in Century City, Calif., on Saturday.
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Terry Crews speaks onstage at the Writers Guild Awards on Saturday in Century City, California.
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Ben Affleck greets director Morten Tyldum at the Writers Guild Awards in Century City, Calif., on Saturday.
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Danny Trejo greets fans and photographers at LAX on Sunday.
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Queen Latifah sings “The Star-Spangled Banner” before the NBA All-Star Game in New York on Sunday.
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Christina Aguilera poses with the Rockettes in New York on Sunday.
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Sean “Diddy” Combs and Jay Z
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Nicki Minaj sits courtside with Meek Mill at the NBA All-Star Game in New York on Sunday.
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Ariana Grande performs at the NBA All-Star Weekend on Sunday in New York.
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Mickey Rourke gets a hug in Los Angeles on Sunday.
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Marco Perego and Zoe Saldana step out in Los Angeles on Sunday.
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Reese Witherspoon runs errands on Sunday in Los Angeles.
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Will Arnett takes sons Abel and Archie out in Beverly Hills on Sunday.
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John Stamos smiles his way through LAX on Sunday.
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Heidi Klum treks through LAX on Sunday.
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