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 ended on 18 October 2018. From 20 October 2018 onwards, Seani B fills his The Rap Show slot on 9pm-11pm and Dev covers The 8th beginning 22 October 2018. On the same month as previous, B.Traits announced that she is leaving BBC Radio 1 after six years of commitment. She said she feels as though she can no longer devote the necessary time needed to make the show the best it can be, and is moving on to focus on new projects and adventures. Her last show was on 26 October 2018. The Radio 1's Essentials Mix is then shifted