Cari Elise Fletcher (born March 19, 1994), known mononymously by her last name (stylized as FLETCHER), is an American pop singer. Her breakthrough single "Undrunk", released in January 2019, was her first single to chart on the Billboard Hot 100 and reached number one on Spotify's Viral Chart in the United States. "Undrunk" was released on her second extended play You Ruined New York City for Me, and according to Mediabase, the song was the fastest-rising song at pop radio for a new artist since 2014.

Fletcher's debut single as a solo artist, "War Paint", was released in June 2015. Her 2016 single, "Wasted Youth", reached No. 1 on Billboard's Emerging Artist Chart. Fletcher was included on Forbes's 2022 30 under 30 list. She released her debut album Girl of My Dreams in 2022. In March 2024, she released her second album In Search of the Antidote.