Jay-Z and Beyoncé attend the presidential inauguration in Washington D.C.

John Mayer and Katy Perry tried their best to upstage that other First Couple in attendance at the presidential inauguration in Washington D.C.

"Still waiting for that From Justin to Kelly sequel!" Obama told Kelly Clarkson at the presidential inauguration in Washington D.C.

Jamie Foxx gets Vice President Joe Biden's approval during his performance.

James Taylor rehearses ahead of his performance at the presidential inauguration in Washington D.C.

Leo gets his drink order in ahead of Julia Roberts and Richard Gere at the 2nd Annual Sean Penn and Friends Help Haiti Home Gala.

Rita Ora dresses down in London.

Drew Barrymore with husband Will Kopelman and their daughter in New York.

Redfoo meets the next generation of LMFAO fans during the Australian Open.

Betty White snubs Jimmy Fallon for his dog Gary during her visit to 'Late Night.'

The Backstreet Boys a their tour press conference in Beijing.