The Libertines are set to play a warm-up gig ahead of their appearance at the Reading and Leeds festivals next month.

The band will play at least one show at Forum in London on a date which has yet to be confirmed.

Singer and guitarist Carl Barat said the group hadn't rehearsed since they announced their reunion in March.

"We've got a bit of time blocked out," he told BBC Newsbeat.

"As I say it's a bit last minute - it always is. Of course we'll be able to do it and we'll be able to do it with aplomb."

The Libertines staged a three-night residency at the Forum in December 2003.

As previously reported, the band will join headliners Arcade Fire, Guns N' Roses and Blink-182 at Reading and Leeds next month.

(by Jason Gregory)