William Shatner dropped by The Colbert Report on February 29 for what host Stephen Colbert called, “a clash of the icons.” Almost immediately the two men engaged in a hilarious battle of wits as Shatner attempted to discuss his one-man Broadway show, Shatner’s World: We Just Live in It. “Can I call you Bill?” Colbert asked to which Shatner denied his request. A clearly flustered Colbert continued to call the two-time Emmy Award winner "Bill" regardless, causing an annoyed Shatner to challenge Colbert to a hilarious arm-wrestling match, “man-to-man.” Click below to find out which man triumphed.