The Fugees - "Killing Me Softly"
Difficulty Level: Kelly Clarkson
"Killing Me Softly" is great for a couple of reasons.
First of all, while you sing Lauryn's part, at least one drunk person will get the clever idea to jump in for Wyclef’s "one time!" and "two times!" part (one drunk person will also, inevitably, make fun of the fact that Wyclef is shouting “one time” while Lauryn pours her heart out).
Once you get the crowd involved, you're on your way to success.
Toward the end is where your confidence comes into play. If you can nail that "whooooaaaa whoaaaaa aaaahhaaaaa aaaaaa laa laaa laaa whooaaaa laaaaa whoaaaa laaaaaaaaaaa" part, the night belongs to you. Drop the mic and walk away stone-faced. If you don't nail it, it will be too hilarious to be called a fail. Just make sure to put your all into it and sing from the diaphragm. No matter how it goes, finish the song with two words: "Nailed it."