K-12 (After School – Deluxe Edition) is the second studio album by American singer Melanie Martinez, released on September 6, 2019, via Atlantic Records & Warner Music Group. The album marked her first full-length studio album in four years since the release of 2015’s Cry Baby. The album title and its concept were initially teased on May 15th, 2019.

The album and the film include her character Cry Baby. The trailer for it was officially released on July 23rd, 2019. Its tracks display very feminist values of women’s empowerment, and touch on issues like the ‘boys will be boys’ mindset, predatory men in power, eating disorders, racism, transphobia, and gender constructs.

An accompanying music film of the same name, written and directed by Melanie herself, made its cinema debut in Los Angeles on September 3rd and then in select cinemas worldwide on September 5th. It was later posted on YouTube.

In January 2020, Martinez announced via an Instagram story that she would release a seven-song EP connected to K-12 sometime in Spring 2020. She also confirmed that it would feature the scrapped K-12 track “Fire Drill” and “Copy Cat”, her collaboration with Tierra Whack.

Melanie initially changed the tracklist to contain 6 songs, and ultimately decided to stick with 7 songs in July 2020, with original singles “Fire Drill” and “Copy Cat” removed from the tracklist.

On September 25th, 2020, Melanie released her fourth EP “After School” alongside a deluxe version of K-12, which included the original tracklist and all songs from “After-School”. At the moment, this version of the album is only available through digital platforms.