If you know, you know—and for almost 70 years, musical theatre lovers have known that there are a lot of ingenious rhymes for the word "if," thanks to songwriters Betty Comden and Adolph Green.

The duo contributed the score to the Broadway revue Two on the Aisle, starring Bert Lahr and Dolores Gray—two outsized personalities who spent most of the show's run trying to upstage each other. As it turns out, both of them were upstaged by the song "If You Hadn't, But You Did," which has been a staple of cabaret acts for decades.

Directed by Abe Burrows and choreographed by Ted Cappy (though choreography for "Dog Show" was courtesy of Ruthanna Boris) the show featured songs, sketches, and an ensemble of over 40.

To celebrate the anniversary of Two on the Aisle, which opened at the Mark Hellinger Theatre July 19, 1951, we've compiled some of our favorite takes on the tongue twister (which rhymes "if" with everything from "skiff" and midriff" to "South Pacif"). Check out Liza Minnelli, Kristin Chenoweth, Carol Channing, and Elaine Stritch tackle the tune below.

Liza Minnelli

Elaine Stritch

Carol Channing

Kristin Chenoweth