So have I understood this correctly: Louis chose this song on the basis that he thought it contained the line
"I'm a winner"? But he:
(a) didn't bother to check the lyrics,
(b) didn't notice that Wagner actually sang the correct lyric ("weirdo")
and
(c) still hung onto his belief that it was "winner" even after hearing the song and having it pointed out to him by Simon? Blimey. Good mentoring, Louis!
