Britney Spears has gone straight in at number one on the US Billboard album chart with her new album, 'Femme Fatale'.

The singer's seventh studio album sold 276,000 copies in its first week and marks her sixth number one album.

Earlier today (April 6), Spears released the video for the album's second single, 'Till The World Ends', released this month.

Rapper Wiz Khalifa entered at number two with his debut album 'Rolling Papers', which shift 197,000 copies, according to Nielsen Soundscan.

Adele remains at number three with '21', while Radiohead were a new entry at number six with the physical release of their latest album 'The King Of Limbs'.

(by Jason Gregory)