How did dianna agron become famous?

Dianna Agron gained recognition for her role as Quinn Fabray in the musical comedy-drama television series "Glee" (2009–2015). She was cast in the role after impressing the producers with her audition tape. Agron's portrayal of Quinn, a popular cheerleader who faces various personal struggles, earned her critical acclaim and a large fan base. Her performance in "Glee" led to increased opportunities and recognition in the entertainment industry.