Since its premiere on October 10, 2012, NBC’s Chicago Fire has become one of the hit new drama series on television right now. The two lead stars of the show, Taylor Kinney, who plays Lt. Kelly Severide, and Jesse Spencer, who plays Lt. Matthew Casey, have both participated in the 2nd intermission “shoot the puck” contests, primarily to promote the show. To pay back the favor, the Chicago Blackhawks’ top defense pair of Duncan Keith and Brent Seabrook made a cameo in last night’s episode of Chicago Fire. Now, the original clip was taken down because of copyright infringement. However, if you click here, you can see the entire episode on demand. To see their cameo, fast forward to the end of the episode.