The pic finds Bieber, looking behind himself as female model Lara Stone falls all over him. Cyrus' remedy? Plaster her own face on the model's. Insta-win.

So call that two shirtless pop stars in a Calvin Klein ad. Kind of. It's the latest in a series of shenanigans from the pop star's Instagram repertoire. Rihanna may be the queen of Instagram, but Cyrus has the weird side nailed down.