Using the hashtag #SummerSongs, the host asked fans to submit lyrics to their favorite singles with a summer twist. Fallon then selected his favorites for Cabello to sing on the show.
Some of the tweaked lyrics included:
- "Don't go chasing ice cream trucks, just stick to the popsicles and shakes that you're used to"
- "Hello from the water slide"
- "All I do is swim, swim, swim"
- "Oh, I wanna grill with somebody"
She also took on two of her own songs, as parodies of "Crying In the Club" and her collaboration with Shawn Mendes, "I Know What You Did Last Summer," were also submitted.
"I want this album," Fallon after her performance.
"It's the summer tweets mixtape, you and I should drop it," Cabello exclaimed. "Let's make this record, Jimmy!"
Cabello performed the real version of "Crying In the Club" elsewhere in the show.