Sorry to those who hoped for 98* its actually a band called "human nature" as Shazam on my iPhone says. Thanks for the 12000 views.
This is the acapella song of Last Christmas from Human Nature.
Human Nature sing Last Christmas at the Carols By Candlelight, Christmas Eve 1997 in Melbourne.
The BEST show on the Vegas Strip. At the Venetian. This was a tribute song to singer George Michael who recently died.
Sorry for the bad syncronization.