Jason Derulo rocks out during his flash mob performance outside of Fuse Studios on Wednesday (September 28) in NYC.

The 22-year-old singer sang and danced with the Knicks City Dancers during the surprise performance.

Even though Jason sparked dating rumors when spotted out at dinner with Jordin Sparks over the weekend, he has told MTV that he and the 21-year-old singer are just friends.

Jason also dished about his ideal date.

“I think the most beautiful thing to me would be breakfast on the beach as we watch the sun rise, because the sunrise is very beautiful, and breakfast is my favorite meal of the day,” Jason said.

25+ pics of Jason inside…