COMEDY
09/16/2011 08:20 am ET Updated Nov 16, 2011

Stephen Colbert, Jimmy Fallon Now Eternal Enemies For Six Months (VIDEO)

Stephen Colbert and Jimmy Fallon spent the last six months being best friends. But now that six months are over -- and they're both up for the same Emmy on Sunday.

On Thursday night's "Colbert Report," Fallon dropped by to walk down memory lane with what he thought was still his "BFFSM," but after a ridiculous trip down memory lane, both hosts realized that the six months had ended on Sept. 3.

While neither seemed eager to stop being best friends, they did come up with a compromise: become eternal enemies for six months. It may seem a little extreme, but watch the clip below and you'll see it was pretty much the only option.

And make sure you watch until the end to find out who Colbert's NEW best friend might be.

WATCH: