BBC Radio 1 been presented by various YouTubers such as Jim Chapman and Hannah Witton. In January 2015, Clara Amfo replaced Jameela Jamil as host of The Official Chart on Sundays (4pm7pm) and in March, Zane Lowe left Radio 1 and was replaced by Annie Mac on the new music evening show. In May 2015, Fearne Cotton left the station after almost 10 years. Her weekday morning show was taken over by Clara Amfo. Adele Roberts also joined the weekday schedule line-up, hosting the Early Breakfast show. In July 2015, The Official Chart moved to a Friday from 4pm to 5:45pm, hosted by
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