Tierra Helena Whack is an American rapper and singer. She originally performed under the stage name "Dizzle Dizz" as a teenager but reverted to her birth name in 2017. Her debut mixtape, Whack World, was released in May 2018 and received widespread critical acclaim. Her song "Mumbo Jumbo" was nominated for Best Music Video at the 61st Annual Grammy Awards. Whack has since collaborated with artists including Beyoncé, Alicia Keys, Tyler, the Creator, Chief Keef, and Melanie Martinez.