"Señorita" was recorded as a duet -- and that's how Camila Cabello likes to sing it.
The 22-year-old singer performed the song solo at KIIS FM's iHeartRadio Jingle Ball at the Forum in Inglewood, California, on Friday, but as she told ET's Katie Krause on the red carpet, it's "lonely" without Shawn Mendes.
"It's lonely. I don't like it. I want him back," she said of her real-life boyfriend. "But it's fun. The fans sing it, and it's cool."
Cabello took the stage just hours after dropping her new album, Romance. "It feels amazing [to see reactions online]. I just also have the sweetest, most amazing fans in the world, and just seeing their reactions and seeing how invested they are in the music and seeing what songs they connect to and them just kind of pointing things out in the album just feels so exciting and rewarding," she shared. "I think like, writing the album is amazing, but the second best thing is release day and getting to see what everybody is saying."
"I feel so thankful, I really do. I'm excited," she expressed.
And while the year is wrapping up, Cabello isn't slowing down. She'll announce her next single next week. She's also working on music for the upcoming Cinderella movie she's starring in. Nicholas Galitzine has reportedly just been cast to play Prince Charming.
"[I'm] super involved. I'm writing songs for it, and it's a really collaborative effort, putting the movie together," Cabello told ET. "I'm excited, and Kay Cannon is the director, she's absolutely incredible and so talented, and I think the whole team is such a joy. I'm excited for the entire opportunity, it's really amazing."
Throughout all her success, Cabello has been supported by friend Taylor Swift. "[It was] so sweet of her [to support my album]. I was like, 'This is the sweetest thing ever.' It meant so much to me for her to do that," she shared.
A Cabello appearance at Swift's upcoming Lover Fest doesn't seem out of the cards. "Wow, I'd love to do that," the "Living Proof" singer said.