Runner up on some season of American Idol (lost to a Tweenie-bopper), and has been playing the Freddie Mercury role in Queen on their tours the last few years. From what I've seen of him, and while no one is Freddie as a frontman/showman, he is probably the best available choice to try to fill those shoes.
Tweenie-bopper - someone who is hugely popular with the tween crowd (and it may spread from there…, but their appeal is mostly based on the fact that there was something posted online saying how great they are and not necessarily on any talent they possess.
I don't know anyone or anything from this era of music other than Katy Perry (who doesn't know her) and Justass Beanhead because unfortunately, he's from Canada. I am from Canada as well.