X Factor USA host Mario Lopez is adamant that Taylor Swift is dating Harry Styles, saying that he spotted the two looking cosy backstage on the show on is radio show last night (Nov 16).

Never-single Swift and ladies man Styles dated briefly earlier this year, with reports of a reconciliation first mentioned when the two were spotted around Los Angeles earlier this month. Now Lopez has given his verdict on the matter and said that he is all but certain that the pair are an item once again.

The funny man and host was speaking on his 104.3 MY FM US radio show on Friday (Nov 16) night, when he said that he witnessed the pair walking "hand-in-hand" just prior to her performance on the show on Thursday (Nov 15). He went on to say that he got the chance to ask Styles what he was doing in LA during the filming of the show, to which Styles replied that he was accompanying Swift.

Style is known for being something of a ladies man and has dated his fair share of girls in the past, with his short fling with Swift coming in April. Taylor herself, who has only recently split from Conor Kennedy, has had her fair share of men in the past been romantically linked to John Mayer, Joe Jonas, Jake Gyllenhaal and Taylor Lautner.