When the night was over, Chrissy, Ludacris and John Legend were please to have a drink! This image appears in the gallery:All The Photos You Need To See From Inside The 2015 Billboard Music Awards 17. When the night was over, Chrissy, Ludacris and John Legend were please to have a drink! Picture: Instagram 28 images See the full gallery: All The Photos You Need To See From Inside The 2015 Billboard Music Awards