Why do you say it's horrific?
1 - The moustache
2 - Boring and repetitive melody
3 - Bad rhymes - bed, heads, said, misled...
4 - The way that the guy's head wobbles about
5 - Medicore cover of a boring song with a point that's been made better before.
That said, I don't totally hate it, I would just never watch it again.
Horrific was perhaps too harsh.