Mile 21

A Cappella

A Co-Ed A Cappella Group Based at CU Boulder

About Mile 21

Instrument-free since 2003!

Welcome! We are Mile 21 A Cappella, a group that has been at the forefront of the Colorado vocal music scene since 2003. Founded by CU students, Chris Carey and Graham Fuller, Mile 21 has been a staple in the a cappella scene at the University of Colorado at Boulder and around the state. Specializing in a broad range of music genres with innovative harmonies, we are dedicated to breaking new musical ground and exploring the limitless potential of the human voice. Our ensemble currently consists of ten, talented singers from all years and fields of study at the university. We pride ourselves on the fact that nearly all of our songs are arranged by current or former group members! We host public concerts every semester and perform all across Colorado for events hosted by Universal Studios, Denver Zoo Lights, and corporation parties, just to name a few. We are available for private and charity performances as well. Take a look around!


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Check out our self-produced albums on Spotify!


Interested in Booking Us?

We absolutely love performing at events across Colorado! Reach out to us with a description of what you'd like and we will let you know about availability and pricing.

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