Having conquered the Latin market, she's got the rest of the world in her sights for 2019.
RIP comes hot on the heels of the Jason Derulo collaboration 1,2,3 - and both highlight Reyes' multilingual approach to pop.
"Honestly, it's harder for me to write in Spanish," she says. "The words have an even deeper meaning for me - so anything could sound cheesy.
"But I like the challenge of writing in Spanish and English. Going back and forth, I find it really exciting.
"And in this case, with RIP, having Anitta from Brazil and Rita from the UK and me from Mexico, it just felt super-inspiring.
"I feel like the world should be like that. We should always welcome all kinds of cultures. I think that's beautiful."