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's Big Weekend and Two Door Cinema Club, with the rest of the line-up being announced by Grimshaw during another "Radio 1 Breakfast Show" on Monday 6 May. Both of the stages were in Ebrington Square - unlike recent Big Weekends there was no BBC Introducing Stage or Live Lounge Tent at this event. The '1Xtra' and 'In New Music We Trust' stages from Hackney 2012 were combined into a single venue. On 23 May 2011, it was announced that for 2012, Radio 1 would be replacing the Big Weekend with a 'Hackney Weekend' to form part of the London 2012 Festival, in