Christian Yelich has taken to Twitter to deny that he is the person appearing in what has been described as an online sex tape.

Yelich, 24, also said that his attorneys are looking into the "false and defamatory video."

"A false and defamatory video was tweeted about me the past 24 hrs. It is 100% not me in the video. My attorneys are looking into it," Yelich tweeted Monday afternoon in a post that has since been deleted.