"Hey, over there....little question..."

We're here in Las Vegas for the 2016 Billboard Music Awards, where approximately five million acts are set to perform tomorrow night (May 22) — from Ariana Grande to Justin Bieber to Pink to Meghan Trainor to Rihanna to Madonna to Celine Dion.

Oh, right. And a certain Living Legend is set to hit the stage for her first solo awards show opening in almost a decade: Miss Britney Spears.

Ahead of the Millennium Award recipient's forthcoming greatest hits medley, we decided to poll the crowd — the crowd being dozens of superstar performers — to find out what songs they love the most from Brit Brit's Spearitual catalog.

As it turns out, "Toxic" seems to be the surefire winner — but you can't go wrong with the hit that started it all: "...Baby One More Time." (Mercifully, Bahari went in deep with some "Slave" and "Everytime" love.)

From Troye Sivan — who will be hitting the stage tomorrow night — to Keke Palmer to superstar producers RedOne and Alesso, we asked everyone to name their favorite Britney Spears song.

Find out their picks in the video up top.

Britney Kicks Off Remixed, Reimagined and Still Iconic Piece Of Me Residency: