January Jones was clearly looking to make an impact when she pitched up at The Tonight Show Starring Jimmy Fallon in this sexy number!
The Mad Men actress was looking pretty fabulous in a black lacy catsuit. The revealing outfit featured several cut-out lace panels, revealing her long pins.
The blonde finished her look with a pair of black killer heels and for the beauty she opted for a pale coral/pink lip and smokey eyes.
During her time on the show, Jones played a game of giant quarters with host Jimmy Fallon. So for those of you who have no idea what giant quarters is (because we didn't)- its apparently a drinking game.
And it's not the first time the chat show host has played it, he previously had a match with actress Kristen Stewart and despite her competitive streak, Stewart lost the tie-up!
According to Mail Online, Jones is currently working on her latest film Good Kill. She stars alongside Ethan Hawke and they play a married couple in the military film about the ethics of his job.
Meanwhile, her co-star Christina Hendricks has been talking about thongs and fashion nightmares! Yup, you read that correctly.
More January Jones looks? Well, here you are.