Think Lupita Nyong’o can only do serious dramatic roles? Get ready to have your mind blown. Last night’s “Lip Synch Battle” the Oscar-winning actress turned in a game-changing performance to Salt-N-Pepa’s “WhattaMan,” complete with a team of firemen who only fanned the flames of this sizzling show — until the wet T-shirt contest at the end. It’s official: There’s nothing this woman can’t do and make it look good (except that one time).