Click to listen Katy B's "On a Mission" and "Broken Record"

This London dance-music fixture is only now taking her remarkably confident debut to the States. She's an ideal ambassador from her homeland's ever-expanding groove universe, with a diva-next-door voice that brings every body-moving subgenre her producers serve up - from bleeding-edge dubstep and so-called U.K. funky to good old-fashioned house and jungle - into the pop realm. Katy is even more formidable as a songwriter, crafting a dozen first-person club-life stories packed with tons of relatable detail: "Standing at the bar with my friend Olivia/We were trying our best to catch up," she sings on "Easy Please Me," sounding like someone anyone would want to party with till sunup.

Related:
• British Singer Katy B Brings Her Inventive Dance Pop to America

“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."