Bill Hader helped set the joke up as he discussed his "worst SNL sketch ever" and jokingly mentioned how Rudd did not put on an accent which is why it was such a flop.

Rudd then surprised the audience and host as he entered from the wings and began to intrude on the interview.

Conan is wrapping up his 11-year run on TBS on June 24th and every new episode brings some bittersweet laughs to audiences. In his final week, many celebrities have shown their appreciation for the late night host before he moves to his new variety show on HBO Max.

Rudd's prank is one of many traditions that Conan has with celebrities and friends that come on the show and it was great for Conan-lovers to watch the tradition one last time.

CONAN will be airing its second to last episode tonight at 11 P.M. with guest Dana Carvey.

The final episode will be airing Thursday on TBS at 10 P.M. and will feature Jack Black and most likely some other surprise guests. Make sure to tune in for the last episode of one of late nights all-time greats!