Cruz Beckham might be preparing to launch a music career – but he's also a model in the making!MORE: Cruz Beckham unveils quirky room inside family's £6m private Cotswolds mansionThe 17-year-old took to Instagram on Monday to share a bold new snapshot with his fans, as he made his magazine debut on the cover of i_D.WATCH: David and Victoria Beckham surprise son Cruz with amazing birthday cakeCruz can be seen in the image – captured by Steve Klein – sat in just a pair of boxer shorts, with his trousers pulled. He has pink hair and wears chunky jewellery and he stares down the camera, closing one eye.READ: Cruz Beckham, 16, shows off FIRST tattoo and fans can't quite believe itMORE: Cruz Beckham's photo at family wedding leaves mum Victoria in tearsDad David was one of the first to react.