Justin Bieber releasing song about Selena Gomez break up   Play video

Justin Bieber has channelled the heartbreak from his break-up with Selena Gomez into a new song as he struggles to get over his ex-girlfriend.

The Baby hitmaker was allegedly dumped by singer/actress Gomez in November.

They reunited before Christmas and enjoyed a romantic ski trip in Utah, but it appears their relationship is now over for good.

Bieber has opened up about the failed romance in a candid interview with Billboard music magazine, in which he admits that he has been relying on his best pals to keep him smiling through the pain as fans and gossip bloggers continue to speculate about what caused the split.

He says, "I'm not in the happiest place that I've ever been. I'm trying to get through what I'm going through... I have my really close friends to cheer me up and keep me going...

"There's so many rumours. People say I call Selena every day and she won't pick up the phone or I'm chasing her down, and these are all fake stories. I don't go on blogs or anything like that. I hear things. People tell me if something happens on the Internet. It gets back to me, definitely."

During the chat, Bieber also unveiled a new ballad he has written about the former couple's relationship, titled Nothing Like Us, which features lyrics like, "Nothing can ever, ever replace you/Nothing can make me feel like you do" and "Gave you everything/Everything I had to give/Girl, why would you push me away?".

Discussing the tune, he explains, "At the end of the day, there's nothing like us, you know? That's just it. It is what it is. People are going to relate to that."

Bieber is now looking to the future and trying to remain positive about what lies ahead: "I don't have any regrets. I live and learn. My mom says, 'You got to learn the hard way, don't you?' That's me. I learn the hard way. But it's about how I pick myself up and be better and stronger."