Fearne Cotton and Reggie Yates host a New Year's Day celebration of the biggest hits of 2015 and reveal the first number one of 2016.

The show features performances by DJ KDA, Tinie Tempah and Katy B; rockers The Vaccines; Sigala; Jess Glynne; The Vamps; west London trio WSTRN; Years and Years; Belgian DJ and music producer Felix Safran De Laet aka Lost Frequencies; new kid on the block Grace; James Bay; American singer, songwriter and actor Nick Jonas; The Maccabees; Ellie Goulding.

Plus, there is a look back at some of the biggest stories in pop from 2015. Show less