This is unimaginably tragic.
The team did release a statement on the matter, though (below):
OMG! It really happened!
Lance Bass, Joey Fatone, JC Chasez, and Chris Kirkpatrick!
With their powers combined, they are… *NSYNC! And they're back!
Ch-ch-check out the video (above) to say HI HI HI again to the ultimate boy band! A-MAZZZZING!