09:58 16 March 2011
Radio One DJ Chris Moyles has kicked off his radio show broadcasting marathon for Comic Relief.
Voice of early-morning radio, Moyles and fellow presenter Dave 'Comedy Dave' Vitty will attempt to break the Radio One record for the longest ever broadcast, which was set by Simon Mayo in 1999.
The challenge will see the pair attempt to beat the 37-hour record by co-hosting all of the usual daytime and evening shows alongside their regular hosts, which include Fearne Cotton, Scott Mills and Greg James.
Moyles has also suggested that he may attempt to carry on broadcasting beyond the 37 hours to break the world record.
He said:
"By the time we've done 37 hours, we may as well go for broke and hit 51.5 hours and set a new world record.
"That means that we can hopefully raise even more cash for Red Nose Day. Although I do think we might be completely mental."
The pair started broadcasting at 6.30am on 16 March and will have to join every presenter in the schedule as guests for the record to be valid.
Dave and Chris are allowed five minutes every hour off air, which they may save up if they wish to take a longer break later on.
Guests being lined up to support their efforts include comedian Jimmy Carr, band The Wanted and X Factor star Olly Murs.
Support Chris and Dave by donating online.