Nickelodeon actress/singing cutie Ariana Grande and Nathan Sykes from the British boy band the Wanted recently worked on a song together for the movie 'The Mortal Instruments: City of Bones,' and they apparently had a lot of chemistry in the studio --  because they're now dating.

"It's very, very new," a source told Us Weekly, noting that the duo met on several occasions but only just started dating.

While yet another source added of the new couple, "Nate sends her flowers everyday."

The duet, titled 'Almost is Never Enough,' will also appear on Grande's upcoming album 'Yours Truly.' While previously doing an interview with MTV about the song, Grande gushed, "Nathan just sang the hell out of it. I thought it was Brian McKnight. I'm like, 'Who is this?' Honestly, I wasn't expecting it. I didn't know he had that in him."

"I saw him perform live on one of the radio shows that we were at together, and I was like, 'Damn, he can sing.' This song I think will pleasantly surprise a lot of people. It's very beautiful and very emotional and I love, love, love what Nathan did to it. It was a great, great, great surprise."