Home Video Jessie J & Demi Lovato Perform “Bang Bang” Live — Video Video Jessie J & Demi Lovato Perform “Bang Bang” Live — Video By Grace - December 5, 2014 244 0 Share on Facebook Tweet on Twitter tweet Jessie J performed Bang Bang Live with Demi Lovato at SAP Center in San Jose, CA for the 99.7 Triple Ho Show. RELATED ARTICLESMORE FROM AUTHOR Video: Demi Lovato Covers Adele’s ‘When We Were Young’! Undercover Lyft with Demi Lovato Demi Lovato “Too Much Love” Audio Audio: Demi Lovato ‘Body Say’ Video: Demi Lovato & Nick Jonas on Late Show with Stephen Colbert Interview! Video: Without a Fight (Brad Paisely Ft Demi Lovato) LEAVE A REPLY Cancel reply Notify me of follow-up comments by email. Notify me of new posts by email.