Nick Jonas at Dinner without Fiancee Priyanka Chopra

Nick Jonas went to dinner solo Friday night, and fans swarmed to congratulate him on his engagement.

Nick was in WeHo at Craig's, sans fiancee Priyanka Chopra. When he left, he graciously, though robotically, posed with fans who wanted a precious selfie with the singer.

He just got back from Mumbai, where he and Priyanka celebrated their engagement with her family in a traditional ceremony.

Our photog asked Nick if his new song, "Right Now," is about Priyanka but he was mum.

The song goes ...

-- You are my water, my sun, my moon and stars/ Your heart is all I need