Oasis singer Liam Gallagher, 28, confirmed over the weekend that he and All Saints singer Nicole Appleton, age undisclosed, are expecting a baby. The two have reportedly been dating for about five months, and she is two months along. “It’s true, and it’s absolutely great — hooray,” Gallagher was quoted as saying by the Associated Press. “Nicole is going to be a great mum, the best mum in the world . . . we are really thrilled.” Gallagher and his wife, “Lethal Weapon 2” actress Patsy Kensit, 32, split last July after a stormy three-year marriage and one child, a year-old son named Lennon. Appleton was previously linked to British pop star Robbie Williams.