Sean Kingston won best reggae act at the recent Mobo Awards

The 17-year-old Miami reggae singer beat off competition from big stars 50 Cent, Justin Timberlake and Timbaland, to hold the spot with Beautiful Girls.

The trio's song, Ayo Technology, jumped from fifth to second place.

In the album chart James Blunt's All The Lost Souls went straight in at the top, knocking rapper Kanye West's Graduation down into second spot.

UK TOP FIVE 1. Sean Kingston - Beautiful Girls 2. 50 Cent (feat. Justin Timberlake and Timbaland) - Ayo Technology 3. Plain White T's - Hey There 4. Kanye West - Stronger 5. James Blunt - 1973

There were no new artists in the top five singles chart, with Hey There Delilah by Plain White T's, Kanye West's Stronger and James Blunt's 1973 all slipping one place each to third, fourth and fifth respectively.

Rock star Pete Doherty and his band Babyshambles claimed this week's highest new entry with Delivery at six.

She's So Lovely, by Scouting For Girls, moved up three places from 10 to seven and the latest song from rockers Foo Fighters climbed 13 places to eighth.

The top ten was completed with Rihanna's Shut Up And Drive slipping three places to ninth and The Way I Are by Timbaland featuring Keri Hilson at ten, dropping one place.

Amy Winehouse's Back to Black climbed from fourth to third in the album chart, and Curtis by 50 Cent dropped two places to fourth.

The State Of Things by Reverend and The Makers was another new entry going in at five.