While eager trick-or-treaters spend the end of September raiding costume shops for convincing Cinderella costumes, two real-life Disney queens-gone-pop stars will go head-to-head in one of the year’s most anticipated album-battles.

So, when it comes to Miley Cyrus and Demi Lovato ­— who both drop their respective sixth LPs on Sept. 29 — we’ve gotta know: who’s on top?

Both born in 1992, these two queens got their starts on the Disney channel — Miley, as the double-duty pop star Hannah Montana and Demi as the sketch comedy world's most promising newbie on Sonny With a Chance. Their lives eventually intertwined, and vacillated between happy moments and some SERIOUS drama (who could forget those early YouTube spats?).

Now, they'll come together once more for a head-to-head battle.

Miley, who's gone from peddling pop earworms ("Party in the USA") to urban affairs ("We Can't Stop") before getting down with psychedelic rock, is aiming to return to her country roots with Younger Now (who could forget her dad was Billy Rae Cyrus?!). And while her next album will touch on politics, she says she hopes it won't register as divisive.

“My record is political, but the sound bite doesn’t stop there,” she told Billboard in May. “Because then I’m the Dixie Chicks and I’m getting my album smashed in the streets, and that’s not what I want. I want to talk to people in a compassionate, understanding way.”

Demi, a soprano with a four-octave range, kicked off her career with power pop, and 2008 debut Don't Forget featured production from Camp Rock co-stars The Jonas Brothers. Since 2011's emotionally stark "Skyscraper," though, Demi's gotten progressively grittier and sexier. Now, with Tell Me You Love Me, she's just angling to sing the soul-pop that inspires her — it's sometimes fallen through the cracks, she told Latina in 2016.

“I don’t care about radio hits. When you try hard for that, it doesn’t happen,” she said. “I get tired of singing ‘Give Your Heart a Break’ and even ‘Confident’ already. I have yet to reach my peak, and also, my voice is better now than it was a year ago. Now I can show people what I can do.”

So, when September 29 rolls around, will Demi's belts and wicked wails be enough to stave of Miley, and will Tell Me You Love Me land atop the Billboard charts? Or, will Younger Now amount to Miley’s fourth No. 1 album, and will Demi have to settle for second best? Share your thoughts, and tell us, once and for all, Who’s on top?

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