VIDEO: Barbra Streisand & Jimmy Fallon Sing Medley of Duets & More on TONIGHT

Last night, NBC's "The Tonight Show Starring Jimmy Fallon" welcomed Barbra Streisand for a night of talk, comedy and performance to celebrate the upcoming release of her new album "Partners." The visit marked Streisand's first U.S. late-night talk show guest appearance in over 50 years.

Below, watch Streisand sing a medley of duets from her new album with host Jimmy Fallon standing in for Elvis, Blake Shelton, and Michael Bublé! Later, Streisand performs "Come Rain or Come Shine".

Click here to watch more clips from the appearance including:

Barbra talks about her album Partners, and recalls her last Tonight Show appearance circa 50 years ago.

Jimmy admits he's surprised how she's not the flashy diva people expect her to be, and why she didn't sing for 27 years.

Streisand reveals how she helped launch Billy Joel's career!

Streisand's album "Partners" is set to be released by Columbia Records on September 16. The project features 12 new duets with world renowned male vocalists including Andrea Bocelli, Michael Bublé, Kenneth 'Babyface' Edmonds,Jason Gould, Josh Groban, Billy Joel, John Legend, John Mayer, Lionel Richie, Blake Shelton, Stevie Wonder and an one-of-a-kind virtual duet with Elvis Presley.

From Universal Television and Broadway Video, "The Tonight Show Starring Jimmy Fallon" is executive produced byLorne Michaels and produced by Josh Lieb. Gavin Purcell produces. "The Tonight Show" tapes before a live studio audience.

Photo credit: Douglas Gorenstein/NBC