M3LL155X (pronounced "Melissa") is the third extended play (EP) by English singer and songwriter FKA Twigs, released on 13 August 2015 by Young Turks.

In an interview with Complex, Twigs admitted that she had a self-hatred while writing her debut studio album LP1, which she considers "quite normal" for a young person.

On 31 August 2015, "In Time" impacted contemporary hit radio in the United Kingdom as the lead single from the EP.

[9] The video begins with the song "Figure 8", and features a cameo of fashion icon Michèle Lamy dressed as an anglerfish.

The song "I'm Your Doll" begins with a CGI animation of a nude woman inflating created by digital artist Jihoon Yoo.

As the song ends, Twigs's water breaks, and pastel paint drips down her legs and forms a puddle around her feet.

A white van with pink and blue handprints flashes on the screen as the music video for "Glass & Patron" begins.

[15] Kris Ex from Billboard described the extended play as "spacious, paranoid, and sultry," but stated that the songs lacked hooks.

[16] Adam Kivel from Consequence of Sound compares the EP to the uncanny valley, stating that the music is similar to R&B and pop, but it still pulls the listener out of their comfort zone.

Harley Brown from Spin stated that Twigs seems to be "growing stronger," and described the sound of the extended play as "futuristic" and "nostalgic.