Imagine you could bring together on one stage, for one night, all the musical guests that have graced “Saturday Night Live" in five decades.

Cher belted “If I Could Turn Back Time.” Lady Gaga performed her hit “Shallow.” Miley Cyrus sang “Flowers" and Lauryn Hill ...

"SNL50: The Homecoming Concert" romped at Radio City Music Hall Friday. Inside the musical bash featuring Cher, Lady Gaga, ...