Media playback is unsupported on your device Media caption Watch a sneak preview of Ricky Gervais as David Brent for Comic Relief

Comedian Ricky Gervais is bringing back The Office's David Brent for Comic Relief.

He will reprise his role as the former manager of Slough paper merchants Wernham Hogg, in The Office Revisited, for Red Nose Day on 15 March.

It has been 10 years since Gervais has been seen on British TV as David Brent.

"I thought it was time to revisit my most famous comedy creation to find out what he's been up to for the last decade," Gervais told The Sun.

Image caption David Brent has written a new protest song called Equality Street

The character has appeared in two episodes of the American version of The Office but was last seen on British TV in a two-part Christmas special in 2003.

David Brent will be seen starting a new career as a talent manager in the music industry, as he tries to help urban solo artist Dom Johnson secure his big break.

A trailer for the mini-episode shows Gervais strumming a guitar to Brent's new protest song Equality Street.

"He is passing on his wisdom to younger would-be rock stars now. Well, really he is trying to worm his way back into rock and roll," said Gervais.

Gervais tweeted a promotional picture for the song and says the episode will show the self-funded video to the song which he describes as "horrendous".

"Fans of The Office will be excited to know we finally get to hear the whole of The Serpent Who Guards the Gates of Hell," he added.

Brent has funded his new sideline as an impresario by selling cleaning products as a door-to-door salesman.