Jay-Z and Beyoncé Knowles were surprise guests at the 2012 Sportsman of the Year presentation in NYC last night. They were on hand to watch as their pal LeBron James was honored with the Sports Illustrated sportsman of the year prize. LeBron and his fiancée, Savannah Brinson, posed for photos alongside Beyoncé and Jay. LeBron was honored to have his friends present, tweeting a photo of himself with Jay and coach Mike Krzyzewski with the caption, "My two mentors in life." Jay and LeBron have worked together on their Two Kings charity over the years, and frequently get together when their families are in the same place. LeBron was able to come to the Big Apple ahead of his Miami Heat game against the New York Knicks this evening. Jay may not turn up to watch the match, though, since his allegiance is with the Brooklyn Nets.