The pop star is current with dancer girlfriend Danielle Peazer. And they were happy to admit at JLS member Marvin Humes and The Saturdays star Rochelle Wiseman`s wedding at the weekend that they are serious about their relationship. A friend told The Sun newspaper: "Liam and Danielle are already talking about serious commitment. He`s got it all worked out already - he`s really mature for his age. "The boys were joking he would be next at Marv and Rochelle`s wedding - and he didn`t deny it. "He`s said all along he wants to be a young dad. He reckons at 25 he`ll be on nappy changing duty." Meanwhile the band are celebrating huge sales of their brand. Arctic Monkeys, Mumford & Sons, Kasabian, Maccabees, Vaccines and Noel Gallagher`s combined sales fall short One Direction`s latest achievement. Liam, Harry Styles, Louis Tomlinson, Niall Horan and Zayn Malik were celebrating after accumulating 12 million sales in the last year. Liam said: "We are obviously ecstatic and humbled by our award today." The boys shifted eight million singles, three million copies of album `Up All Night` and a million DVDs in total. To acknowledge their success, the band were presented with a special disc last night by Syco and Sony Music.