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Worst: Jessie J performing 'We Will Rock You'
Jessie J has pipes. She has sex appeal. She can even rock a catsuit. But she ain't no Freddie Mercury. Still, she was set up to disappoint -- when audiences were treated to footage of Freddie Mercury riffing in concert, it seemed like a natural evolution for Roger Taylor and Brian May to perform while their late, great lead singer wowed us. Instead, May and Taylor noodled around for a bit while Jessie J tried to add girl power growl to a classic. Too bad all we could focus on was how much we would have rather heard Mercury or even another legend -- Annie Lennox, George Michael - instead of a new kid on the block.