Mariah Carey is facing another copyright lawsuit over her track ‘All I Want For Christmas Is You’.Country singer Andy Stone – who performs under the stage name Vince Vance – filed a complaint yesterday (November 1) in Los Angeles federal court, alleging that Carey’s Christmas hit infringed the copyright of his 1989 song under the same name. He made the same claims in a lawsuit that was dropped this time last year.“If you look at both songs, you can see that about 50 per cent of the words are the same, in almost the same order.