</a><p>Two hours of Emilia Clarke</a> caroling and Henry Golding</a> being his charming onscreen self, all wrapped up into a Christmas-themed rom-com? That's pretty much our idea of the perfect holiday guilty pleasure. So to celebrate the release of Last Christmas</a>, we sat down with the stars to see just how well they actually know the most iconic Christmas carols. </p><br /><p>Clarke and Golding quizzed each other as they tried to guess which song a holiday lyric was from, including the festive classic "Winter Wonderland" . . . </p><br /><p></p><br /><p>. . . and the official song of the season, "All I Want For Christmas Is You."</p><br /><p></p><br /><p>Watch the stars hilariously sing their way through the challenge in the video above, and catch Last Christmas in theaters everywhere this Friday, Nov. 8!</p><br /><p>- Additional reporting by Kelsie Gibson</p>
