Break room party. Kevin's singing "You Oughtta Know" while Michael chats up his date. He turns to grab a snack, and when he turns back, he fails to notice that he's now talking to Andy's date, who has no idea what Michael is talking about. Awkward. Kevin gives his song a big, angry finish. Whoa, Kevin's got some shit pent up in there.
Angela's party, which is more like a wake. "Did you have fun at Benihana's?" she asks. Dwight says no. They hold hands over their respective bad days. Then Pam and Karen come in, all excited over Dwight having won the raffle. They're not as excited as Dwight, though. Pam, realizing this is getting a little too mean, pulls Karen aside. After what I assume is Pam's highly discreet explanation to Karen about Dwight and Angela, they joint-TH that they're disbanding. Then they return to the conference room and invite Angela to merge the parties. After learning that the karaoke machine has Christmas songs but no power cord, Angela "finds" the cord in the potted plant outside the door.
Somehow the "more fun" party -- which has now moved into the bullpen -- now has Michael and Andy singing "Your Body Is a Wonderland" to Andy's date in a completely creepy way. Did you know John Mayer gave the show the rights to that song in exchange for a Dundie? Suddenly Michael's date rides up next to Andy's date on his old bike, and Michael realizes that he doesn't know which one he's supposed to be singing to. You think Jim doesn't notice that? Wrong.
Kelly sings "We Belong" by Pat Benatar to Ryan, who pounds 'gritas like his throat is on fire. Meanwhile, Michael points out his date -- who's still standing next to Andy's date -- to Kevin and Roy. "Which one is she?" Michael has no idea. "You know how all...waitresses look alike." Then he THs, "Are you going to tell me that Stevie Wonder doesn't love his wife just because he isn't sure what she looks like?"
Michael goes and finds both waitresses in the break room, talking to Ryan, and makes a big show of pretending to look for his girlfriend in the cabinets and stuff. Finally one of them speaks up, and as Michael hugs her, he secretly marks her arm with a Sharpie. Problem solved!
It's Creed's turn at the karaoke machine, singing an old Grass Roots song, as chance would have it. He sounds great, as does the forty-year-old recording of his voice that he's singing along with. Dude's a walking time warp. Meanwhile, Pam goes and finds a moping Toby and gives him her robe. Suddenly it's Toby's best Christmas ever. It gets even better if you imagine Pam telling him this: "I thought you should have this, since I never wear bathrobes. I just go from the bed to the shower buck naked, and then back again. Back and forth, back and forth. All weekend long. Sometimes jogging. It's ridiculous, you should see it." From there we go to Dwight and Angela testing his new walkie-talkies, using the codenames "Monkey" and "Possum." Guess which is which. Karen and Jim open their gifts to each other -- the same Bridget Jones movie -- and then hug happily. Pam wasn't looking. No, she's on the phone. Not looking.