Last night (December 9) at Z100's Jingle Ball in New York City, Camila Cabello performed with her girls in Fifth Harmony, but she also joined Machine Gun Kelly for the live debut of their duet, "Bad Things," and that had her feeling all the feelings into the wee hours of the morning.
After the big show — which featured Justin Bieber, Niall Horan, DNCE, and more — Cabello gushed her thanks all over Instagram, saying that an event like Jingle Ball and the "Bad Things" performance in particular made her feel so, so grateful.
"Watching people in the crowd singing the words back w a smile on their face is the best and most overwhelming feeling and it will never get old," she wrote.
"I just wanna give a huge thank u to u guys for giving us the opportunity to live out our dreams and share what we love w the world."
She shouted out MGK ("it is an honor to share the stage w u and I'm so thankful to live this out w u!!!") before passing out, which apparently happened after 1 a.m., as she was still buzzing from the energy of the set. Sounds like a great close to a huge year for the singer, and a welcome dose of positivity, too.