The pop star did double-duty, filling in for Shawn Mendes on the steamy song and telling the crowd, "Shawn isn't here tonight, so I'm going to need you to help me sing this chorus."
The 10,000-plus fans at T-Mobile Arena were up for the challenge, singing every word of the Billboard Hot 100 No. 1 hit right back at her.
And "Señorita" was just one of a few treats Cabello had in store for the iHeart crowd: She also performed her two-pack of new singles -- "Shameless" and "Liar" -- live for the very first time, starting her set with the mesmerizing choreography of the "Shameless" video and then hitting the crowd with the one-two-three Latin punch of "Señorita," "Liar" and the No. 1 smash "Havana" to wrap things up.
(As expected from listening to the studio version of "Liar," the horn section plays especially well in a live setting.) Tucked in the second slot of her five-song set was "Never Be the Same," the top 10 Hot 100 standout from her self-titled solo debut.
