Moriah Rose Pereira (born January 1, 1995), better known as Poppy and formerly as That Poppy, is an American singer, songwriter, musician, and YouTuber. She first earned recognition for surreal performance art videos on YouTube, in which she played an uncanny valley–like android commenting on and satirizing internet culture and modern society. She has become more widely known for being highly experimental and versatile with her artistry and music.

Poppy's debut EP, Bubblebath (2016), featured ska and pop influences. Her debut studio album, Poppy.Computer (2017), was largely an art pop release and saw her embark on her debut concert tour, the Poppy.Computer Tour, until 2018. She experimented with electropop and heavier genres such as nu metal on her second album, Am I a Girl? (2018), while her second EP, Choke (2019), and third album, I Disagree (2020), continued in a heavier direction and incorporated heavy metal and industrial rock. The single "Bloodmoney" from I Disagree received a nomination for the Grammy Award for Best Metal Performance, making Poppy the first solo female artist to be nominated in the category.

As part of her long-time collaboration with professional wrestling promotion WWE and its NXT brand, Poppy released the metalcore EP Eat (NXT Soundtrack) in 2021. Her following two albums, Flux (2021) and Zig (2023), as well as her fifth EP, Stagger (2022), featured alternative rock and dark pop sounds. Her sixth album, Negative Spaces (2024), continued her trend of moving away from pop and electronic music and towards heavy metal. That same year, she received a second Grammy nomination for Best Metal Performance nomination for featuring on Knocked Loose's song "Suffocate".