Alexaundra Christine Schneiderman, known professionally as AleXa (Korean: 알렉사) and formerly Alex Christine, is an American singer based in South Korea. After competing in both seasons of the reality show Rising Legends, AleXa signed with Zanybros' ZB Label in 2018 and trained there for roughly two and a half years. During this time, she also competed on Mnet's Produce 48. She debuted as a K-pop singer in October 2019. In 2022, she represented her home state Oklahoma in NBC's American Song Contest with the song "Wonderland" where she won with 710 points.

Produce 48 is the third season of the South Korean reality competition series Produce 101. It was a large-scale project in which the public "produces" a girl group by voting for members out of a pool of 96 contestants from South Korea and Japan, as well as voting for the group's concept, name and debut single. The show was a collaboration between the Mnet series Produce 101 and the J-pop idol group AKB48. The winning 12 contestants, with no nationality caps, as voted only by Korean viewers, would promote as a group for two years and six months. The program itself is primarily in Korean, however staff and trainer instructions were translated onsite by interpreters. The show announced the final 12 members who made it into, as well as the official name of the group Iz*One during the finale on August 31, 2018.