[8] "Girl's Not Grey" received generally positive reviews from critics, who considered it a pop-punk song from the album.

AllMusic reviewer Johnny Loftus felt that the chorus of the backing voices shifted the song from hardcore punk to pop, and called the single "a car-radio singalong of pure genius".

The concepts within the video are similar to the basic plot of Lewis Carroll's novel Alice's Adventures in Wonderland, featuring a little girl that follows a rabbit into an alternate reality.

The rabbit is now blue and the girl's clothes pink, with her head now a plastic cartoon mask expressing euphoria.

Petals burst out of Havok's chest, and even fall in the alley where the colorless version of the band finishes playing the song.

[10] By early 2023, the rabbit suit had been donated to the Punk Rock Museum in Las Vegas,[8] which opened on April 1 of that year.