Umbrella is Rihanna's first number one single in the UK

The Barbadian-born star saw off the challenge of former Sugababe Mutya Buena, whose debut solo single Real Girl climbed seven to number two.

Pensioner group The Zimmers entered the charts at number 26 with their cover version of The Who's My Generation.

Maroon 5 remained on top of the album chart, while Wait For Me by the Pigeon Detectives entered at number three.

R Kelly's Double Up also graced the top 10 album rundown in its first week of release, at number 10.

UK TOP FIVE SINGLES 1 Umbrella - Rihanna 2 Real Girl - Mutya Buena 3 Beautiful Liar - Beyonce and Shakira 4 Here In Your Arms - Hellogoodbye 5 Makes Me Wonder - Maroon 5 Source: Official Charts Company

In the singles chart, Calvin Harris's The Girls was the only new entry in the top 10, making its debut at number nine.

The high climbers included Either Way by the Twang, which has landed at number eight, while Reverend and The Maker's Heavyweight Champion of The World rocketed from 38 to 12.

Marilyn Manson settled inside the top 20 with Heart-Shaped Glasses, the opener from his forthcoming album Eat Me, Drink Me.

'Absolute triumph'

The Zimmers entered the chart two places higher than Spanish singer Enrique Iglesias, who debuted at 28.

The group were formed as part of a BBC documentary about elderly people, which explored feelings of isolation brought about by old age.

Will Daws, a producer on the programme who came up with the idea of forming The Zimmers, said: "I think this is an absolute triumph.