The Parks and Rec Cast Sings ‘Bye, Bye Lil Sebastian’ One Last Time [VIDEO]

The cast of Parks and Recreation sing 'Bye, Bye Lil Sebastian' on Late Night with Seth Meyers for the final time. Take a look as things get weird... REALLY weird!

Its the end of an era... the series finale of Parks and Recreation aired on Tuesday night. To commemorate the special occasion, Seth Meyers had the entire cast of  Late Night.

Before they all sang this infamous song from the show, they all sat down with Seth Meyers and shared different stories from the Parks and Rec set. But the best part was clearly when they sang 'Bye, Bye Lil Sebastian' and Jim O'Heir and Aubrey Plaza were making out. That was gross, hilarious, perfect and unexpected all at the same time.

This was one of the best shows on network TV for the past few years. It took over that title from The Office when it ended. It was definitely sad to see the series finale last night, but it was a great episode. If you're a big fan too, take a look at the other things the cast did on Late Night with Seth Meyers last night: