Justin Bieber: 'First Selena Gomez Kiss Was Best Ever'
Pop idol gets all mushy about girlfriend in magazine interview...
The 18-year-old pop megastar told One Direction and pledged to appear on their next album - if they'll have him.
He told Radio 2: "They're my boys. They came to my house, we hung out. I have a pool so we all went in and chilled out. If they want me on their album, they just have to ask. They're talented."
We told you at the weekend how Biebs had admitted he had considered quitting pop over Mariah Yeater's paternity case against him.