HE’S IN THE ROB MOB

Comedian Josh (The Fat Jew) Ostrovsky wore a T-shirt with Robert Pattinson’s photo on it to the premiere of “Good Time,” starring Pattinson, in Chelsea. “I was trying to think about who his other No. 1 fans are and I feel like it’s some Brazilian teenagers,” Ostrovsky (below), an admitted Pattinson fan, told us. “I fit in weird with the other No. 1 fans who claim they’re No. 1. I’m the only fat Jewish guy over 30.”