Wu Xuan Yi (吴宣仪) is the lead dancer and sub vocalist of the girl group Cosmic Girls under Starship Entertainment. She is also the leader of the group's sub-unit called "Joy". After joining and winning second place in the Chinese version of Produce 101, Xuan Yi also became a member of the group Rocket Girls.
Rocket Girls 101 disbanded on June 23, 2020 following the expiration of the members' contracts.
As a soloist, she goes by the stage name Betty Wu. She made her Chinese solo debut on August 13, 2019 with the digital single "Little Bird".
In 2021, she debuted as an actress as she starred in the hit chinese drama 'Douluo Continent' alonside Xiao Zhan (Sean Zhao). That same year, she was the screenwriter for the film 'Look Into His World', which she also starred in.
On the 3rd of March, 2023, Xuan Yi didn't renew her contract with Starship Entertainment and offically left the group to pursue solo activities in China.