12/23/2011 at 11:00 AM EST
Conan O'Brien might win the Boss of the Year award after surprising one of his staff members with the best Secret Santa gift she could ask for – a visit from Jon Hamm
A hilarious video
, posted on O'Brien's website, shows the talk show host selecting talent coordinator Ashley Olivia as his Secret Santa after deciding to participate in his show's annual holiday gift exchange for the first time.
O'Brien discovered Olivia's crush on Hamm as he rooted around her desk looking for possible last-minute gift ideas. It was there that he saw a picture of the Mad Men
star taped to her cubicle.
On Wednesday night's show, O'Brien brought Olivia out onto the set and presented her with a framed photo of Hamm. "I didn't get it signed. Let's take care of that right now," he said, as Hamm emerged from backstage.
"Oh my God," a stunned Olivia said as Hamm gave her a warm embrace, signed the picture – and gave her a bottle of vitamins.