Bella started taking gymnastics classes for fun at 18 months old at a local gym. She fell in love with the sport and never looked back. At the beginning of Bella's gymnastics career, she trained at Mini-Hops Gymnastics in Plymouth, MN. Following her level 4 season in 2019, Bella moved to Legacy Gymnastics in Prairie Eden, MN and has been there ever since.

In 2020, Bella qualified to the Level 6 State Championships but was unable to compete due to the COVID-19 pandemic. She moved up to level 7 for the 2021 and 2022 seasons. In 2022, Bella took home a bronze medal on floor exercise at the Level 7 State Championships. As a level 8 gymnast in 2023, Bella placed sixth in the all-around and third on vault at the State Championships. She qualified to the Region 4 Championships, finishing sixth in the all-around, second on floor exercise and fourth on vault.

As a level 9 gymnast in 2024, Bella finished fifth in the all-around and first on balance beam at the State Championships. At the Region 4 Championships, she finished eighth in the all-around and fifth on vault and floor exercise. She qualified to the Level 9 Western Nationals and placed in the top 15 in the all-around, seventh on floor exercise and eighth on vault. Bella moved up to level 10 for the 2025 season. She finished sixth in the all-around at the State Championships and qualified to the Region 4 Championships.

Bella is the daughter to Molly and Gene Tannuzzo and she has two brothers and two dogs. Currently, Bella is an honor student at Minnetonka High School and she will graduate in 2027. She is a member of her high school dance team, Letters of Love Club and Ceramics Club. She has earned Spanish Honors Society and Honor Roll. When she has time, Bella volunteers teaching Spanish at local elementary schools.