Fallon and the past Republican presidential nominee did their turn at the news on Friday night’s show.
Fallon, who will take over the tonight show in February ripped off a couple of shots at Romney.
"You gotta listen to the Mitt man," Fallon began.
During the visit Romney talked more about the new documentary on the Romney campaigns.
But he also made mention of "the 47%" bringing a chuckle from Romney.
Filmmakers had exclusive access to moments previously uunseen and promise and entertaining and informative piece.
Romney also talked about upcoming Sochi Olympics and his time as Olympic chief for the US.
Real Clear Polictics has more video.
http://youtu.be/7HTJaJuA0Gw