BBC Radio 1 part of a Guinness World Record attempt, in aid of Comic Relief. The pair stayed on air for 52 hours in total setting a new world record for 'Radio DJ Endurance Marathon (Team)’ after already breaking Simon Mayo's 12-year record for Radio 1's Longest Show of 37 hours which he set in 1999, also for Comic Relief. The presenters started on 16 March 2011 and came off air at 10:30am on 18 March 2011. During this Fearne Cotton made a bet with DJ Chris Moyles that if they raise over £2,000,000 she will appear on the show in a swimsuit.
BBC Radio 1 30 September 2017, Radio 1 celebrated its 50th birthday. Tony Blackburn recreated the first ever Radio 1 broadcast on Radio 2, simulcast on pop-up station Radio 1 Vintage, followed by The Radio 1 Breakfast Show celebration, tricast on Radio 1, Radio 2 and Radio 1 Vintage, presented by Tony Blackburn and Nick Grimshaw, featuring former presenters as guests Simon Mayo, Sara Cox and Mike Read. Radio 1 regularly supports charities Comic Relief, Sport Relief and Children in Need. On 18 March 2011, BBC's Radio 1 longest serving breakfast DJ Chris Moyles and sidekick Dave Vitty broadcast for 52 hours as