Meghan Trainor teases Harry Styles collaboration: 'It's a song about your feelings after a break-up'

'All About That Bass' beauty Meghan Trainor recently confirmed that she has written a song with One Direction heartthrob Harry Styles and she has now offered a few details about the track itself.

Speaking about the joint effort, she explained that it won't necessarily be recorded by herself and Styles: "It's a cute ukulele song with two vocalists, a male and a female, we don't know who yet."

Trainor went onto admit that it's a love song about the feelings you have after a break-up and even teased a line from the cut:

"It's about how, you know when you date someone, and then you break up, and then you see them on a date with someone else but they're so happy, so you're like, 'I'm happy for you. Maybe some day in the future if we're back together, that'd be cool. Good luck. I haven't seen that smile in a long time, that's great. Maybe some day when we're old and gray, we could be in love once more.' Oops, there's a line!"

Watch Trainor's BBC Live Lounge session below: