well reading the comments on blue moon, both of the songs covered another song
edit: from wiki
http://en.wikipedia.org/wiki/One_In_a_Million
The song has also been covered by japanese pop-rock singer Anna Tsuchiya, who changed the lyrics to keep only the music from the original song. The song in question is called "BLUE MOON" and is present on the tracklist of her 2006 single "SLAP THAT NAUGHTY BODY".
It was covered by Hannah Montana (Miley Cyrus) for the soundtrack to season two of the television series Hannah Montana, and released on the accompanying soundtrack album Hannah Montana 2: Meet Miley Cyrus (2007).