Although Brummet at first lived in Hawthorn Woods, Illinois, she moved to Phoenix, Arizona when she was 9. After the move, she became involved in children's theatre and voice lessons.

Besides All That, Brummet has guest starred on Gilmore Girls (in a flashback episode as a 16 year-old Lorelai Gilmore), What I Like About You (alongside All That alumna Amanda Bynes), Drake & Josh, The War at Home, she will be starring in the movie Sweet Sixteen as Nikki Martinez, in 2008.

She's also written with great writers such as Holly Lindin (of Ophir fame.) and is a songwriter and singer herself. Brummet released her first music video in September 2007 entitled "Nothing Day."