Rob Pattinson and Katy Perry were party pals last night, enjoying a night of karaoke at Dimples Supper Club for a mutual friend’s birthday. reports that the stars were spied close in conversation, at one point touching foreheads and giggling.

While Katy — who recently introduced boyfriend Russell Brand to her parents — took to the stage to belt out a karaoke number, the New Moon star stayed low key sipping whiskey and cokes, and taking numerous cigarette breaks.

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