US rapper 50 Cent has unveiled plans to release a surprise new mixtape album online.

'War Angel LP', which will be available via the rapper's website from Tuesday, features entirely new material.

"I'm finnin' to get on the street, you already know what time it is," 50 Cent told MTV News.

The rapper said he had included 'LP' in the title because he didn't view the release as a mixtape.

“My core audience will understand it immediately, and it's written specifically for that,” he added.

The rapper is currently working on the long-overdue 'Before I Self Destruct' in Los Angeles with producer Timbaland.

The album, which also feature production from Dr Dre, was originally due to be released last year.

(by Jason Gregory)