The Song: "It's So Hard To Say Goodbye"
The Artist: Boyz II Men
Why It Would Be A Perfect Choice For The Sing-Off: Hey, did we mention catering to Shawn Stockman yet? Ha! But, seriously: This is the a capella song that we want to hear a group tackle this season. If they do it right, we don't think they'll be saying goodbye to the judges anytime soon.