Now in its fourteenth year, El Monstero is an institution. Each December (and in the last two years, July), an all-star cast of premier St. Louis musicians combines forces to pay tribute to Pink Floyd and the bombastic spectacle that is its stage show in a series of sold-out concerts. What makes El Monstero special is that the production is never stagnant. Yes, the group covers the big hits and always delves into Dark Side of the Moon, but it also mixes curveballs like "Free Four" into its sets. All songs are played with ace musicianship: The group plays as a tight unit but can cut loose with dazzling solos during jams. And the bells and whistles get more sublimely ridiculous each year. Just when you think El Monstero has exhausted every trick known to a rock show, it flies a friggin' helicopter into the Verizon Wireless Amphitheater. Perfect for die-hards and casual fans alike, El Monstero is the ultimate Floyd tribute experience.