LONDON - Kanye West has 50 Cent's number.

The rapper beat out 50 yet again, this time at Britain's Mobo (Music of Black Origin) Awards, where he won Best Hip Hop act on Wednesday.

On Tuesday, West was crowned the victor in the pair's hotly contested battle to see which one of their albums, released on the same day, would sell the most in the first week: West's "Graduation" sold 957,000, while 50's "Curtis" sold 691,000 in the United States.

West also beat 50 on top of the British album charts. 50 was supposed to attend the Mobos but canceled his European appearances this week.

Other winners at the Mobo Awards included troubled British diva Amy Winehouse, who was named Best U.K. Female. The retro-soul singer who has been dogged by concerns over her health, reports of drug use and a string of canceled concerts.

Singer-songwriter Ne-Yo collected both the Best R&B title and Best Song, for "Because Of You," at the ceremony, held at London's 02 Arena.

Barbados-born Rihanna, who had a huge worldwide hit with "Umbrella," won Best International Act.