As break-up songs go, 'So What' is an absolute hoot: Pink insists she'll be OK because she's "still a rock star", her ex gets called a "tool" and we chant along to every last "na na na" thanks to some ...

It’s no surprise that the recent divorce of America’s most soul-baring mainstream singer would yield an emotionally in-your-face radio single. She loudly shrugs “So What” in the swaggering first smash ...