Sinead O'Connor

It hardly compares to subsequent ripping up a picture of the Pope on ‘Saturday Night Live,’ but Sinead O'Connor boycotted the Grammys in 1991, despite being nominated for Best Alternative for her breakthrough LP ‘I Do Not Want What I Haven't Got.’ Proving that she stood by her album title, she not only failed to show up but also became the first artist to ever refuse a Grammy altogether, citing the awards’ “extreme commercialism."