The new single, "Imagine" became at midnight on Twitter, Spotify and YouTube, where the moving lyric-video has already notched up 1 million views.
Earlier in the week, the pop powerhouse teased her new single on her Instagram story, alongside a countdown of the single's release.
In the clip, you can hear Ariana singing, "Imagine a world like that. Imagine our world." On , she described the song as a "a simple, beautiful love that is now (and forever) unattainable."
While Ariana hasn't confirmed exactly who she's singing about in "Imagine", many fans believe the ballad to be a tribute to her ex-boyfriend rapper Mac Miller, who died in September from an apparent drug overdose. It would make total sense, seeing as Miller had a tattoo on his arm that read "Imagine."
Given the song's powerful lyrics, we'd say they might be right. As if to confirm the connection, Ariana responded to a fan's tweet on Wednesday, who speculated about the meaning of the song.
"Kind of like... pretending it never ended. Denial. But I look forward to you hearing it and having your own experience with it. You may take away something totally different and specific to your life! Love u."
Over on Instagram, she provided further clues. "A lot of this album mourns failed yet important, beautiful relationships in my life (as well as celebrates growth/exploring new independence),. But for those of you asking about ‘Imagine’: I would say if ‘Thank U, Next’ = acceptance… ‘Imagine’ = denial. Hope that makes sense."
Whether she reveals the true inspiration behind the song or not, there's no denying it's a beautiful ballad that's bound to resonate far and wide.