Lady Gaga and Cher wowed as they led the stars at Lorne Michaels' SNL 50th anniversary concert afterparty in New York City on Saturday. They both dazzled in stunning ensembles.

If it felt like “Saturday Night Live” took to the airwaves in 1975 with a renegade spirit, 50 years later it’s become not only a late-night tradition, but traditional. Hitting the half-century mark is ...

From veteran performers to three newcomers making their debut, here's everything to know about the 50th anniversary season ...