Justin Bieber answers a call on his phone after dancing in the streets outside the NRJ Studios in Paris on Thursday afternoon (February 17).

The 16-year-old musician flew in last night after premiering his new flick, Never Say Never, in London.

And it’s looking like everyone wants to collaborate with Justin — even Jessie J. She shared with MTV, “I’d love to [work with him]! I’m such a fan of someone who works hard to get where he’s got to.”

20+ pics inside of Justin Bieber…