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We graded Jessie J, Ariana Grande, and Nicki Minaj's performance of ''Bang Bang'' an A-.
Jessie J - Who You Are
Jessie J. - It's My Party- New Song
Jessie J on the #GRAMMYs red carpet
Jessie J #grammys 2015
Sasha Fierce, aka Beyoncé, gives a lot of attitude during a performance on Oct. 31 in Sydney
Up close and personal. Carly Rae Jepsen connects with her fans during a performance at We Day Minnesota on Oct. 8 in St. Paul, Minn.
Recent GRAMMY winner Justin Timberlake shows us a few things about grooving during a performance on March 30 in Sheffield, England
Kiesza performs "Hideaway" on stage during the MTV EMA's 2014 at The Hydro on November 9, 2014 in Glasgow, Scotland.