McKenna attends Northwestern University, Evanston, IL where her degree is in Voice & Opera Performance and Entrepreneurial Marketing & Design. She also holds a certificate from the Segal Design Institute and is constantly continuing her education with language courses as well as her own private voice instruction and coaching. McKenna has performed in Italy, Austria, and around the United States. She currently speaks French and is developing both her German and Italian language skills. McKenna attends masterclasses and studies privately with singers such as Karen Brunssen and Sylvia Greenberg and coaches such as Alan Darling, David Aronson, and Richard Boldrey who are known as some of the finest singers and coaches in the industry.

Although formally classically trained, McKenna teaches all genres of singing. Many of her non classical students focus on musical theater, psalm/religious singing, folk, or pop. The combination of McKenna’s classical education and her experience performing and teaching other genres means that her students getting the best of both worlds: a strong, healthy classical foundation and stylistic excellence in whatever genre they pursue. 

Lessons are scheduled to best fit to the student's schedule when possible. McKenna is a patient and organized instructor. She understands that students learn at a different pace, and enjoys teaching everyone in a style that works best for them.