VIDEO : Justin Bieber's 'What Do You Mean' is the Key to Kanye's Happiness

Both a beauty and a beat came to Justin Bieber's March 21 concert at the Staples Center in Los Angeles. The beat came courtesy of Bieber himself, while the beauty came in the form of Kanye West and his killer dance moves. Kanye and wife Kim Kardashian West attended the concert weeks after Yeezy proclaimed his admiration for Bieber's song "What Do You Mean?" At first, Kim seemed super thrilled to watch Justin perform live. However, in typical Kanye fashion, her hubby refused to even crack a smile. But then a miracle happened. Justin Bieber finally gave Kanye the gift he had been waiting for: a live performance of the West-approved "What Do You Mean?" Kanye burst into a happy dance. Now the world finally knows how to make Kanye happy.