Watch Billy Crystal Lead the Tribute to Fellow Broadway Alum Robin Williams at the Emmys

Billy Crystal paid touching tribute to fellow stage and screen star Robin Williams at the Primetime Emmy Awards on August 25, describing him as "the greatest friend you could ever imagine." Oscar winner and Broadway alum Williams, who died of suspected suicide on August 11, was honored during the “In Memoriam” segment. Watch, below, as Crystal talks about how "for forty years he was the brightest star in the comedy galaxy," then, as the tears glisten, marvel at just a few of Williams' magical TV moments.