Mamie Gummer Shared a Sweet Duet with Mom Meryl Streep

Jimmy surprises Mamie Gummer with a clip of her film debut, singing with her mom Meryl Streep at 20 months old. Subscribe NOW to The Tonight Show Starring Jimmy Fallon: Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35, 10:35c Get more Jimmy Fallon: Follow Jimmy: Like Jimmy: Get more The Tonight Show Starring Jimmy Fallon: Follow The Tonight Show: Like The Tonight Show: http