Justin Bieber and One Direction are not collaborating

OH BLOODY HELL: Justin Bieber and One Direction haven't recorded a song together, according to a Bieber 'rep­res­ent­at­ive'.

"They just came by the studio and heard some of the album ‘Believe'," this 'rep' told Gossip Cop.

Rumours of a col­lab­or­a­tion were started by One Direction frontman Niall Horan who tweeted: "In the studio with our boy @justinbieber last night, it’s gona sound great!"

Oh Niall.