Kanye West snubbed his own Grammys after-party

Rapper Kanye West reportedly snubbed his own Grammys after-party.

The 'Stronger' rapper - who bagged four awards at the awards ceremony in Los Angeles Sunday  - celebrated his success at another bash - much to the bemusement of his manager and friends who were left waiting for him at Hollywood's Opera/Crimson nightclub.

A source told FOX News: "He went to the Entertainment Weekly bash at the STK steakhouse and lounge. He got swept up and I guess forgot to make it to his own party."

Guests who partied at Kanye's bash included fellow rapper Snoop Doog, actor Wilmer Valderrama, actress Bai Ling and a number of American football players from the Oakland Raiders and San Francisco 49ers.

Earlier in the evening, Kanye, 30, paid tribute to his late mother Donda - who passed away last November - in his acceptance speech for Best Rap Album.

The hip-hop star, who performed his smash hit singles 'Stronger' and 'Hey Mama' at the ceremony, also took Best Rap Song for 'Good Life', Best Rap Solo Performance and Best Rap Performance by a Duo or Group for his collaboration with Common.