Jimmy Fallon Jimmy Fallon

Audiences are most familiar with Jimmy Fallon sitting behind his desk on Late Night With Jimmy Fallon. However, as the funnyman prepares to host the 62nd Annual Primetime Emmy Awards on August 29, NBC has released new promos of Fallon wandering the halls of Sterling Cooper Draper Pryce—donning his best '60s attire—in three hilarious Mad Men spoofs.

"We made it for our show [Late Night] because we spoof all the shows," Fallon tells TV Guide Magazine. "We asked the Mad Men people for their blessing and they said you can shoot it on our set if you want to!"

The first promo aired on last Wednesday's Late Night and was available on NBC.com, but was pulled due to Emmy fairness rules ("legally you can't spoof [just one] show [in] a promo because the voting's not over yet," says Fallon). The segments will once again be available after Emmy voting has ended on August 17.

Fallon says the best part of the experience was being able to fully immerse himself in the Mad Men universe, even sharing screen time with the show's resident redhead, Joan. "I wore a Don Draper suit and got my hair combed by his people. It was mind-blowing!" says Fallon. "They were just going to do it with me, but Christina Hendricks made it ten times better. She couldn't have been funnier. I owe her dinner."