Alexandra Burke is piggybacking off her mates in JLS’ fame after blagging them into letting her team up with them for a new fashion line.

The Beat Again hitmakers were runners-up to Burke on U.K. TV show The X Factor in 2008, but they’ve put their former rivalry behind them to join forces to design pieces for their 2KX fashion range, which will hit British stores in the spring.

To mark their stylish collaboration, they’ve designed a limited edition t-shirt for the Help a London Child Christmas Appeal. JLS singer Oritse Williams says, “We wanted to keep on giving something back to the kids in London who need our help. We’re asking our fans to show us some love, buy the t-shirt and help us raise as much money as possible for this brilliant charity.”