Premise: "I'm Not the One" is a song by the American rock band The Cars, from their fourth album, "Shake It Up". It features Ric Ocasek on lead vocals, Benjamin Orr singing the 'You Know Why' phrase, with the whole group repeating "going round and round" as backing vocals throughout the song.
Hypothesis: "I'm Not the One's" lead vocalist has a first name that starts with the letter R.