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's Big Weekend 2015 announced as the first performer on 23 January 2015 by Nick Grimshaw on his breakfast show, and the 13th February 2015 saw Florence and the Machine being announced for the Saturday. On 20 April the full lineup was announced, with Muse and Foo Fighters headlining. On 14 May Catfish and the Bottlemen replaced Sam Smith on the Main Stage after Smith had to have surgery. BBC Radio 1's Big Weekend 2015 Radio 1's Big Weekend 2015 was held in Earlham Park, Norwich between 23–24 May 2015. Tickets were released on 31 March 2015 at 8:05am, with 25,000 tickets available for