This content is copyright of CelebMix.com. The UK has a long history of producing era-defining girl groups - and now, a new contender is ready to take the mic. Meet XO, an uber talented, force-of-nature five-piece, who are already turning heads with the release of their debut single, 'Lovesick'. Blending sharp pop melodies with a fresh, modern edge, the girls are intent on carving their own space in today's landscape. Their unapologetic energy nods to the greats of British pop while pushing forward with a sound and style that feels entirely their own.