This content is copyright of CelebMix.com. Your favourite new girl group XO have unleashed their latest single 'Real Friends' - a slick, swaggering slice of electro-pop co-written by Charli XCX. The track marks the quintet's boldest release yet, fusing punchy beats with an unapologetic message about loyalty, independence, and staying true to your squad. The five-piece - made up of Emmy, Reanna, Shali, Summer and Zoe - first made waves earlier this year with their high-energy debut, and 'Real Friends' cements their place among pop's most exciting new voices.