"The Tonight Show" airs at 11:35 PM ET; check local listings.
Streisand, whose album "Partners" was recently released, offered a special performance as part of her "Tonight Show" appearance.
"Partners" boasts an all-star lineup of male performers, who join Streisand for a dozen duets that range from pop to Broadway classics. Among the artists featured are Elvis, Billy Joel, Blake Shelton, Michael Bublé and more. Proving she hasn't lost her "Funny Girl" touch, Streisand performed a medley of duets from the album with Fallon stepping in to make comedic cameos as some of the guest artists who join her.
Watch the clip below:
