Chris Moyles and his DJ partner Comedy Dave have set a new record for longest radio broadcast, raising over £2m for Comic Relief in the process.
The pair begin their marathon show at 6.30am on Wednesday. They overtook the 37-hour record set by fellow Radio 1 DJ Simon Mayo in 1999 on Thursday evening, and by 8.30am this morning beat the 50-hour world record.
Upon reaching the milestone an exhausted Moyles told listeners: "We're going to carry on for another two hours. Why? I have no idea."
By the time the show ended it had raised £2.4m for charity.
"We had no idea watching myself and Dave slowly going insane would be as popular as it was," a weary but elated Moyles said.
The duo's efforts were supported by fellow Radio 1 DJs and a string of celebrity guests, including Jimmy Carr, Lily Allen, Katy Perry, Davina McCall.
James Cordon dropped in for some "hip-hop karaoke" and Gary Barlow presented the team with their Guinness World Records award.
And it wouldn't be comic relief without some nudity. Fellow Radio 1 DJ Greg James stripped down to a red nose in a bid to hit £1m.
Fearne Cotton also promised to wear her swimsuit around the studio if the total hit £2m before the end of the show. Shortly after the BBC's live video stream crashed as a result of the increased traffic.
During the record attempt, the DJs were allowed a five-minute break every hour, showers and the occasional brief power nap.
and  have broken a  by hosting a marathon programme on UK national station . The aim was to raise money for British charity .

The programme started at 0630  on Wednesday, being broadcasting live on the station's website and an interactive red button service available via digital television. On Thursday, Chris and Dave managed to surpass the record for the longest continuous broadcast by a presenter on BBC Radio 1. The record had been previously held by , who had achieved thirty-seven hours in 1999.

Moyles and Comedy Dave continued to broadcast on the station and subsequently overtook the "Radio DJ Endurance Marathon (Team)" Guinness World Record at 0830 UTC yesterday. At this stage, Moyles announced on-air "we're gonna do another two hours. Why? I have absolutely no idea." A Guinness World Record certificate was presented to Moyles and Vitty by British musician  of . The show ended at 1030 UTC yesterday after fifty-two hours.

The total donated by listeners was 2,406,648. (3,906,711, 2,754,697).

Moyles said of his record "we’ve been overwhelmed by the support we’ve received from our listeners. It’s been a rollercoaster ride of fun, laughs, tears and downright silliness. Now I’m off for a massive sleep!" Dave Vitty explained that "we're both losing our voices and we’ve literally limped through the last few hours to the finish line but it’s all been worth it when we saw that final figure! Our listeners are incredible."

BBC Radio 1 Controller  is "deeply proud of what they have achieved on many fronts – the amazing total raised, brilliant, high quality radio broadcasting throughout and some of the funniest and most inventive TV I’ve seen. I’ve also been knocked out by everyone’s support including the extraordinary generosity of Radio 1's audience; I want to thank them on behalf of Comic Relief and the BBC."