Andrew Lipovsky/NBCBarbra Streisand stopped by The Tonight Show Thursday to plug her new Broadway tribute album, Encore: Movie Partners Sing Broadway. and while there, she joined “Donald Trump” — played by host Jimmy Fallon — for a duet on “Anything You Can Do, I Can Do Better.”

Fallon, in character as the Republican presidential nominee, opened the song by promising that he and Streisand will “make duets great again.” In one verse, Jimmy’s Trump crows, “Any wall you can build, I can build better.”

In another verse, 74-year-old Streisand sang, “I can vote for Hillary,” adding, “She’s going to win huge.”

“That is really, really low,” the fake Trump responded, to which Barbra countered, “Are you talking about me, or your latest poll numbers?”

During an interview later, Streisand told Fallon that after 50 years in show business, people still mispronounce her last name — the second “s” is soft. After learning that Siri — Apple’s computerized personal assistant — also got it wrong, Barbra explained she went straight to the head of Apple, Tim Cook, and asked him to take care of it. He agreed, and Streisand said the pronunciation will be changed with the next update, on September 30.

Afterwards, Streisand was joined by one of her duet partners on the album — and Fallon’s other guest on the show, former 30 Rock star Alec Baldwin — for a performance of “The Best Thing that Has Happened.”

Encore: Movie Partners Sing Broadway will be available Friday.

Copyright © 2016, ABC Radio. All rights reserved.