The big picture: Paul Simon and Sabrina Carpenter kicked off the celebrations with a performance of " Homeward Bound ," before "SNL" alum Steve Martin delivered an opening monologue that included a joke about President Trump's decision to rename the Gulf of Mexico the " Gulf of America ."

Alums, former hosts and seemingly everyone who’s ever entered “SNL’s” orbit was on hand to celebrate the show’s 50th Anniversary. “SNL50: The Anniversary Special” was part reflection, part reunion and a culmination of festivities that began on Friday with a concert.

Watch the biggest moments of 'SNL at 50,' including Amy Poehler and Tina Fey, Miley Cyrus and Brittany Howard, Eddie Murphy as Tracy Morgan, "Weekend Update" and more.