Conan O’Brien’s decision to have Jack White play his return to late night wasn’t the surprise. Based on recent history, anyone could guess that one. But nobody — not even the folks at Warner Music Canada — could tell you what White was going to do once he donned Conan stage. Would he give Coco his second White Stripes reunion? What about a song off his long-gestating solo album? Maybe a selection from his newly announced project with Danger Mouse?

As it turns out, White did none of the above, instead choosing to team up with his new BFF for a performance of “20 Flight Rock”, a song originally written by Eddie Cochran which Conan recorded when he hit White’s studio over the summer. Backed by the Jimmy Vivino and the Basic Cable Band, the performance was old school in every respect — from the 30s swing band feel to the Chuck Berry-sounding guitar solos. Hell, Jack even looked like Elvis for the occasion.

Above, you can relive the duo’s performance and below, find the brief interview which followed. White’s line about changing the locks after Conan’s Nashville visit rivals only the Masturbating Bear and Jon Hamm’s respective appearances for funniest moment of the night.

Hat tip to our friends at The Audio Perv for video support.