Adam Shankman Tweets about his sister in law, Dermot Mulroney and Rob Jamming on Saturday Night

Adam Shankman, director and producer, talks about Rob jamming on guitar and Dermot Mulroney playing cello on Saturday night (September 15).

@adammshankman: My sister in law jammed w/ Rob Pattinson on guitar, and Dermot Mulrony on cello last night. Brilliant and stupifying 2 watch. Life is weird.

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