Miley Cyrus has mocked Justin Bieber's naked photo.
The Boyfriend hitmaker shared a nude snap on Instagram showing him exposing his bare backside yesterday as he looked out to sea.
Now his pal Miley has edited the image to enlarge his pale derriere.
Posting the picture online, the 21-year-old star wrote, "Look", with the Wrecking Ball singer changing the image and reposting it on her own account, writing, "Bieber got back!"