Apparently happened on Bulgarian Idol auditions, broadcast on Bulgarian TV 26th February 2008, when Valentina Hassan, who does not speak a word of English, sung the classic Harry Nilsson / Mariah Carey hit “Without You”.
Even the dialogue is funny, as she said she was going to sing a song called “Ken Lee”, and to a question as to whether she meant “Without You”, she empathically said “No!” Then at the end, when asked what language she had just sung in, she didn’t miss a beat when answering: “English!”
Has to be seen to be believed, this is at least the video of the year 2008:
Apparently, later she was interviewed about that episode:
