Fallon filled in for some of those partners Monday night as he sang a medley with Streisand . Barbra King last appeared on ` ` The Tonight Show '' 51 years ago . She and host Jimmy Fallon appeared together . He said he expected the star to be a woman .
Barbra King last appeared on ` ` The Tonight Show '' 51 years ago . She and host Jimmy Fallon appeared together . He said he expected the star to be a woman .