Demi Lovato Joins Jessie J For ‘Bang Bang’ At Concert

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Ariana Grande may be able to belt notes like Mariah, but she has competition brewing. When Jessie J needed a Ariana stand-in during a recent concert in California, Demi stepped in and sang Ari’s part in ‘Bang Bang’. The screams make it hard to hear Demi sounded amazing!

Demi tweeted about the event last night.”That just happened….. Thank you SO much @JessieJ for having me on stage for Bang Bang… It was an honor!”

Photo from Instagram

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