N.E.R.D. frontman and Black Eyed Peas leader end legal dispute over use of "I Am."
Robin Thicke, Paul Wall and more also celebrate this week.
The Black Eyed Peas frontman celebrates his 39th birthday.
(Photo: Allen Berezovsky/Getty Images for i.am.angel Foundation)
Beyoncé arrives at the Arts Club in Mayfair, London, in a short, striped dress. She danced the night away with her hubby, Jay Z, and celeb friends like Swizz Beatz and Will.I.Am. (Photo: WeirPhotos / Splash News)
The best in West Coast music production, Will.I.Am and Dr. Dre attend the after party for Beats by Dre Celebrates CES at Light Nightclub at Mandalay Bay in Las Vegas. (Photo: Judy Eddy/WENN.com)
Super-producer Will.i.am attends the red carpet launch for The Voice UK at BBC Broadcasting House in London.
(Photo: Anthony Harvey/Getty Images)