[8] She attended The New School in New York City,[9] majoring in jazz performance and voice before dropping out to pursue music as a full-time career, which she references in her song "23".

[14] Wallice opened for Chloe Moriondo in 2021, and played at the Moroccan Lounge in Los Angeles on December 7, 2021.

[15] Watanabe played at the All Things Go Festival in 2022[16] and supported The 1975 on their Manila & Australian tour in April 2023.

"Punching Bag" received four million streams increasing Wallice's popularity.

As part of the program, Wallice collaborated with David Marinelli and Ariel Rechtshaid to create "Nothing Scares Me", released exclusively to Spotify June 23, 2021.