Just a few weeks ago, the annual LOCKN’ Festival brought together a number of top notch performers for one of the biggest jam-scene events of the year. The festival is known for its collaborations, and the one that occurred during Twiddle’s set was perhaps one of the most surprising of all.

The Vermont jam group brought out the beloved Keller Williams during their performance, accompanying him on his hit song “Best Feeling.” The tune is a favorite by Keller, and also frequently appears in The String Cheese Incident setlists. Twiddle had some fun jamming on the tune, clearly excited by Keller’s presence on stage.

Fortunately, LOCKN’ has just shared new pro-shot video of the collaboration! Watch the “Best Feeling,” streaming below.