Tony Blackburn to compete as stand-up for Comic Relief

Image caption, Blackburn is being mentored by Julian Clary while Murray is helped by Mark Steel

91热爆 presenters including Radio 2's Tony Blackburn and Radio 4 Woman's Hour host Jenni Murray will do battle as stand-up comedians for Comic Relief.

Six presenters have been working with mentors, including Julian Clary and Sandi Toksvig, ahead of a gig at London's Comedy Store on 22 February.

Their progress will be revealed in a three-part Radio 4 series next month.

The winning act, voted for by listeners, will be announced on Red Nose Day on 18 March.

Radio 1's Dev, Radio 3's Tom Service, 5 live's Tony Lives and 6 Music' s Shun Keaveny will also compete.

Blackburn said he was "petrified" at the prospect of performing his three-minute routine while Murray said she was "terrified".

"I have a reputation for corny gags but on radio it takes 10 seconds then I put a record on - I don't have to rely on getting a reaction," Blackburn added.

Tickets for the show are available from the 91热爆 Audiences website.

Stand Up for Comic Relief will be broadcast on Radio 4 at 1100 GMT on 7 and 8 March, and 1830 GMT on 9 March.