Keeping things sophisticated and chic, it's 'Lips Are Movin' star Meghan Trainor This image appears in the gallery:Billboard Music Awards 2015 Pictures: The Stars Arrive In Style On The Red Carpet In Las Vegas! 8. Keeping things sophisticated and chic, it's 'Lips Are Movin' star Meghan Trainor Picture: PA 19 images See the full gallery: Billboard Music Awards 2015 Pictures: The Stars Arrive In Style On The Red Carpet In Las Vegas!