Moriah Rose Pereira (born January 1, 1995), known professionally as Poppy and formerly as That Poppy, is an American singer, songwriter, and YouTuber. She first earned recognition for starring in surreal performance art videos on YouTube as an uncanny valley-like android who commented on and satirized internet culture and modern society. This led to the release of a pilot for the proposed 2018 surreal comedy online series I'm Poppy on YouTube Premium.

Poppy signed a recording contract with Island Records in early 2014, and released her debut pop extended play (EP) Bubblebath in 2016. In 2017, she signed with Mad Decent and released her debut art pop studio album Poppy.Computer. To promote the album, she embarked on the Poppy.Computer Tour. She released her second album Am I a Girl? in 2018, where she experimented with electropop and nu metal.

In 2020, Poppy signed with Sumerian Records and released her third studio album I Disagree, which incorporated heavy metal and industrial rock and featured lyrical themes and music videos described as "disturbing", "violent", and "macabre". The album spawned four singles, including "Bloodmoney", which received a nomination for the Grammy Award for Best Metal Performance in 2021, making Poppy the first solo female artist to be nominated in the category.

In 2021, as part of her long-time collaboration with professional wrestling promotion WWE and its NXT brand, she released the metalcore EP Eat (NXT Soundtrack). Her fourth studio album, Flux, was released in 2021 and featured an alternative rock sound. In 2023, she released her fifth studio album, Zig, which was described as dark pop.