Capital FM Jingle Bell Ball

Each Christmas, Capital FM cram a mind-boggling number of chart-conquering acts into The O2 for two hectic days of full-on pop mayhem. This year’s line-up includes Jason Derulo, Ariana Grande, Years & Years, Jess Glynne, Nathan Sykes from The Wanted and David Guetta on Saturday, then Little Mix, Justin Bieber, Calvin Harris, Ellie Goulding, Nick Jonas, Sigma and Charlie Puth on Sunday. In short: a year’s supply of huge pop tunes in one packed weeked.