On The Rocks
CU Boulder’s premier all-treble a cappella group
Who We Are
On the Rocks is CU Boulder’s premier all-treble a cappella group, known for powerful vocals, creative arrangements, and an energetic stage presence. Since 2005, we’ve been bringing fresh takes on everything from pop hits to timeless classics, sharing our love of music with the Boulder community and beyond.
Listen In
On the Rocks performing Greedy by Ariana Grande. Can’t get enough of a cappella? On the Rock’s treble blend weaves beautiful harmonies into your favorite songs. Find more videos on our Media page.
What’s new with us?
Want to see what we’ve been up to? Our blog is the best place to catch performance highlights, behind-the-scenes stories, and updates on upcoming events. Click through to stay connected with our journey and experience the music, the memories, and the fun right alongside us!
Contact Us
Interested in booking us? Have any questions that we can answer? Want to request a song for us to perform? Fill out the form so we can get in contact!