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 On 28 February 2012, further changes were announced. Greg James and Scott Mills swapped shows and Jameela Jamil, Gemma Cairney and Danny Howard joined the station. The new line-up of DJs for "In New DJs We Trust" was also announced with B.Traits, Mosca, Jordan Suckley and Julio Bashmore hosting shows on a four weekly rotation. This new schedule took effect on Monday, 2 April 2012. In September 2012, Nick Grimshaw replaced Chris Moyles as host of "Radio 1's Breakfast Show". Grimshaw previously hosted Mon-Thurs 10pm-Midnight, Weekend Breakfast and Sunday evenings alongside Annie Mac. Grimshaw was replaced by Phil Taggart and