Live” will be celebrating its half-century birthday this weekend with a big celebration. SNL alum will join an A-list group of actors, comedians and singers Sunday night for the “SNL 50: The Anniversary Special” from Rockefeller Center.

“SNL50: The Homecoming Concert” will bring together some of the biggest names in music past and present, most of whom are notable “SNL” musical guests. Cher, Dave Grohl, Jack White, Lady Gaga, and Snoop Dogg are among tonight’s performers.