We did something really fun - we had all of our bridal party come in to the song "Signed, Sealed, Delivered" - they danced all around the room and started a conga line to get the party started, then when we entered we jumped right into the conga line complete with flower leis!
...we had everyone dancing before dinner (we had a cocktail hour before so the party was well underway). Then during dinner, we did some chill stuff like Michael Buble (very modern Frank Sinatra sound), John Mayer, Paulo Nutini even Jack Johnson. The music was so great and everyone loved how we had the dancing going before, during and after dinner. The DJ was great and convinced everyone to dance as much as they could...it was good to break things up because we had a 5 course dinner!

The pictures were proof how much fun everyone had...granted it was a destination wedding, but the reception was in an open air ballroom and it had some very traditional wedding elements to it.

Hope this helps!