Can anyone think of a great men's quartet piece?

Question:

Can anyone think of a great men's quartet piece?

i'm looking for a men's quartet peice for music contest in a couple of months. charictaristically, we are a powerhouse group and we have a very fast rhythmic peice going first [rosephanye powell's "non nobis, domine"]. even though we are a high school group, there is no concept to how hard it can be. we did joseph m. martin's "the awakening" last year and brought down the house. any help is appreciated!

Best Answer - Chosen by Asker: In the still of the night

Try something from Boys 2 Men...their stuff is very challenging and beautiful! Try 4 Seasons...

I'm not kidding..."I thought she knew" by N Sync. People don't have to know it's them. The song is beautiful.

Az yet-Hard to say I'm sorry

Good luck!