The week in pictures: Jan 31 - Feb 6

LAST UPDATED AT 16:03 ON Fri 5 Feb 2010

LOS ANGELES, MONDAY: Celine Dion, Justin Bieber, Usher, Katharine McPhee, will.i.am, Toni Braxton, Barbra Streisand, LL Cool J, Harry Connick Jr, Wyclef Jean, Vince Vaughn, Jeff Bridges, Natalie Cole and others sing at the 'We Are The World 25 Years for Haiti' recording session at Jim Henson Studios in Hollywood.

Celebrities sing 'We are the world' for Haiti, suicide bombers hit Karachi and the Pope has animal trouble