Taylor Swift performed her new Christmas song at the JBB

Taylor Swift Performs 'Christmas Tree Farm' Live For The First Time At The Jingle Bell Ball 2019

Taylor Swift and Harry Styles performed at the 2019 Jingle Bell Ball

A-Z Of Every Iconic Performance From The 2019 Jingle Bell Ball

Taylor Swift performed a medley of her hits at the JBB

Taylor Swift Closed The Jingle Bell Ball With A Magical Medley Including 'Lover' And New Song 'Christmas Tree Farm'

Sam Feldt at Capital's Jingle Bell Ball

Sam Feldt Put On His Own Christmas Party At Capital's Jingle Bell Ball

Sam Smith brought the house down with their club hit set

Sam Smith Slayed Their Smash Hit Set At The 2019 Jingle Bell Ball

JBB's on stage moments on Sunday

Jingle Bell Ball 2019: From Taylor Swift To Sam Smith - The Best On Stage Moments From Sunday At The O2