Britney Spears Sings 'Happy Birthday' on 'The X Factor'
The clip was shown on an episode that aired on Wednesday (September 19).
“Sitting down to watch #xfactor now & I’ll be tweeting along 2 the whole show with behind the scenes dirt. Here we go…” Britney tweeted during the episode.
Last week, Britney filmed scenes for upcoming episodes of the show at her home with contestants from her team.
Britney Spears Sings Happy Birthday on ‘The X Factor’