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20 August 2013, 09:45
The artists performed 'Want U Back' live in Los Angeles last night.
Taylor Swift joined forces with Cher Lloyd for a performance of the British star's hit single 'Want U Back' last night (19th August).
The 'Everything Has Changed' singer was performing at the Staples Center in Los Angeles when she brought her special guest out.
Taylor complimented the meaning of the track before introducing her to the huge crowd.
Cher's appearance sent the audience wild as they watched the female stars run through a rendition of the track.
Check out Taylor Swift and Cher Lloyd performing 'Want U Back' from the Staples Center below:
Cher sold over a million copies of the single in the US when it was released last year as her popularity stateside continues to grown.
Meanwhile, Taylor will be among the guests at this weekend's MTV Video Music Awards 2013.