You always hear that phrase "the third time's the charm". What about the fourth time? Sinead O'Connor is tying the knot in Las Vegas tomorrow for the fourth time. The Irish singer is best known for her hit, "Nothing Compares 2 U" and for tearing up a photo of the pope on Saturday Night Live. The pope photo prank really damaged her career and these days you really don't hear too much about her. We wish her well with her upcoming nupitals tomorrow in Sin City.