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 Greg James. The move took place in order to take into account the changes to the release dates of music globally. Cel Spellman joined Radio 1 to host Sunday evenings. In September 2017, a new slot namely Radio 1's Greatest Hits was introduced for weekends 10am-1pm. The show started on 2 September 2017. On 30 September 2017, Radio 1 celebrates its 50th birthday. Commemorations include a three-day pop-up station "Radio 1 Vintage" celebrating the station's presenters and special on-air programmes on the day itself, including a special breakfast show co-presented by the station's launch DJ Tony Blackburn, which is also