Quote:
Originally posted by Kim Kardashian
Ariana was the main reason the song was successful, putting Demi on would have been a mistake.
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sis Demi wanted to sing Ariana's verse during the Jinglebell concert which happened Jessie J was also there but Ariana didnt so Demi asked Jessie if she could sing Ariana's verse and Jessie said yes. Not the studio version lol
and both Demi and Jessie didn't even rehearse for their suprise duet performance. Demi smashed and slayed it