Remember that scene in Lost in Translation when Bill Murray crashes the karaoke bar and becomes the life of the party? A tipster tells us that that’s what it was like last week when Philadelphia Mayor Michael Nutter stopped in at Yakitori Boy. Donning his “Wonder Mike” persona, the mayor wowed the crowd with his take on the Sugar Hill Gang’s “Rapper’s Delight,” the old school jawn he’s been known to rock from time to time since he first performed it at his inauguration back in 2008. Our tipster says what was most impressive was the mayor’s mastery of the tune. He never once took his eye off the audience to check the lyrics on the karaoke screen.