PopUps: A Justin Bieber and Zayn Collaboration May Be in the Works

Can you handle this?

Two of the prettiest male pop stars may be working on a song together. According to U.K. tabloid The Sun, Justin Bieber and former One Directioner Zayn are in the process of a collaboration.

The rumor comes after Bieber took to Instagram to praise Zayn's new song "Still Got Time," which features R&B artist PartyNextDoor.

"Justin has been really complimentary of Zayn's new music and there have been tentative discussions about them working on something together," a source told The Sun Sunday. "They are in touch and chatting about all sorts and getting on like a house on fire - Justin even retweeted a link to Zayn's single on his Twitter which he doesn't just do for anyone. It would be a huge collaboration if it happened so watch this space."

Listen to "Still Got Time" below.

[H/T NME]

This story is part of our special report: "PopUps". Want to read more? Here's the full list.