Find out where to see Bieber, Britney and Bruno Mars on the same line-up
A host of big names including Justin Bieber and Britney Spears have been announced for a massive Christmas radio show.
The two acts will perform at the KIIS FM 102.7 Jingle Ball on December 2 at Los Angeles' Staples Center.
Also on the bill are Bruno Mars and One Direction's Niall Horan.
They're joined by Meghan Trainor, Fifth Harmony, Diplo, Alessia Cara, Lukas Graham and Daya.
Watch Justin Bieber in action below:
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