Florence Welch continues her superhero morph from arty rocker to pop diva with this mighty single. "All of the ghouls come out to play/And every demon wants his pound of flesh," she sings over a pregnant drone, like Glinda the Good Witch about to be very bad, indeed.

Listen to "Shake It Out":

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“My President”

Young Jeezy teams up with Nas on this track, in which he compare his own success with the idea of an African-American winning the Democratic Party's nomination in the 2008 presidential election. "When I pulled up in my car, that s--- was unbelievable to people in my neighborhood because they were like, 'We grew up with him. How the hell did he accomplish this?'" he told Rolling Stone. "I feel like it was the same way with Obama. I grew up all this time, but I've never seen a black man this close to running this country."