Nicole Appleton, Liam Gallagher and Melanie Blatt having lunch together in a pub. London, England - 26.04.07

The rocker - who has a six-year-old son, Gene, with the former All Saints star - says he's long-planned to wed but wanted to concentrate on raising his child.

A source tells British newspaper the Daily Express, "Liam and Nicole are registered for a service in Marylebone."

It will be the first marriage for Appleton. Gallagher divorced actress Patsy Kensit in 2000.

Source: WENN