While in town to tape TNT's "Christmas in Washington," Conan O'Brien took a tour of traditional Georgetown power spots this weekend. The redhead brunched at Seasons in the Four Seasons on Saturday morning, hit up Cafe Milano that evening, and ended the night with a glass of wine with friends at Martin's Tavern. Tavern owner Billy Martin tells Yeas & Nays that Conan chatted up other patrons and even promised to talk to President Obama about dining there. (He's the only president in modern history not to have visited Martin's Tavern.) Of all his restaurant's famous guests, "Conan's gotta be one of the best," Martin said.