[1] In an e-mail sent to their subscribers, Karmin announced that "Didn't Know You" was the first single from their debut album Leo Rising, although after the official track listing was released it was mentioned that there was a relisting of the album's songs to include "Along the Road", a single released previously to "Didn't Know You".

In a statement to Billboard, Karmin said "The Gemini track is a story of betrayal, we wanted the listener to feel the passion and energy in the story, so we built it on a driving bass line with a syncopated drum groove which opens up to a full rhythm section of aggressive, pissed-off drummers.

[6] The music video, set in an 1850s western style starts off with a bounty hunter picking up binoculars to reveal wanted signs of Amy and a mystery woman (Britni Sumida).

After the bounty hunter comes down to check if the two are dead, and starts walking away, it is revealed Amy is still alive and pulls out a tiny pistol unbeknownst to everyone else.

In the end, Amy stands behind a white wall, shirtless with her hat in front of her chest with blood coming down her stomach.