After releasing her 2006 comeback album, appropriately titled "I'm Not Dead," it took third single "U + Ur Hand" to resuscitate Pink's challenged career. The lead single from upcoming fifth album "Funhouse," "So What," pairs personal lyrics (and jabs) about her recent divorce ("I guess I just lost my husband, I don't know where he went/So I'm gonna drink my money/I'm not gonna pay his rent") with insatiable melodic verses meant for massive car singalongs and a chorus combustion followed by a fist-in-the-air refrain. Pink reunites with frequent collaborator Max Martin for what already appears a can't-miss. Around the world, the song instantly topped digital downloads and is locked in at No. 2 at iTunes stateside. Radio can't be far behind with an irresistible soundscape that will transform listeners into rock stars singing their very own breakup song. —Chris Williams