Elizabeth Catherine McAlpine (born September 21, 1999) is an American singer-songwriter. Born and raised in the suburbs of Philadelphia, McAlpine began gaining recognition by posting original songs and covers online on the platforms SoundCloud and YouTube.

In 2020, she released her debut studio album, Give Me a Minute, to critical acclaim. Her second album, Five Seconds Flat (2022), gave her her first appearance on both the U.S. Billboard 200 and the Billboard Hot 100, with the TikTok-viral single "Ceilings". Following her 2023 signing with RCA Records, McAlpine released her third studio album, Older, on April 5, 2024, which was supported by the lead single of the same name.