Above: BJ Carson, dressed in the inflatable unicorn costume, right, dances down Longs Peak Avenue during the Left Hand Artist Group's April Fool's Day Parade in Longmont on Monday. Carson was celebrating her 65th birthday on Monday. Around 50 costume clad participants marched from Roosevelt Park, singing, dancing, waving to people in vehicles and blowing bubbles along the route.

Aprylisa Snyder smiles as she marches along Longs Peak Avenue during the Left Hand Artist Group's April Fool's Day Parade.

Jude Roosen, right, plays the trombone as he and others march down Main Street.