VIDEO : Josh Duhamel Photobombs Miley Cyrus & Family

Is Josh Duhamel an honorary Cyrus? The actor made a hilarious surprise cameo alongside the famous family at Sunday's Billboard Music Awards, poking his head into a group pic with Miley Cyrus and her family as they posed together in the audience. Josh appeared to be seated directly behind Miley, but neither she nor her crew seemed aware that the "Transformers" star had inserted himself into their photo-op. The "Malibu" singer did apparently get a kick out of Josh's undercover move after the fact, sharing the moment on Instagram.