Singer, Bruno Mars, mocked teen pop star, Justin Bieber, 18, during his appearance on the television show "Saturday Night Live." But Bieber has mistakenly taken it as a compliment and gave him a shout out on Twitter, for using one of the teen's favorite "words" and dancing in a delicate manner. Mars also did an impression of the late singer Michael Jackson that was spot on. Recently, Mars was arrested for possessing and taking cocaine, but was not given jail time for the criminal offense. Mars' newest hobby is clearly teasing other singers about their style on stage.