WATCH BELOW: Matty J catches Laura Byrne rapping Nicki Minaj to their baby Taking to Instagram, Laura shared a selection of photos of herself, Matty and their daughter Marlie-Mae in honour of Matty's special day."Happy birthday to my copilot, my baby daddy and my best mate @matthewdavidjohnson. Nobody can make us laugh or pull off a pair of budgy smugglers like you can.