Skylar Grey showed us a more playful side on her Eminem-assisted single “C’Mon Let Me Ride.” But she wipes the smirk off her face on “Final Warning,” the dark new single off her upcoming debut Don’t Look Down, due July 9.

“This is the first time in my entire life of making music, when I made this song, where I feel like I finally figured out the way that I wanted to sound and the combination of things,” Skylar tells Rolling Stone. “I wrote the song three years ago, and it’s still my favorite. I’ve written so many songs since then, yet I always go back to this one. It got me going on the whole Skylar Grey project.”

Listen to a 90-second snippet before the full song hits iTunes tomorrow.