Slightly Stoopid & 311 in Englewood

Slightly Stoopid is an American band formed in 1995 in Ocean Beach, San Diego. They play reggae rock, ska, dub, punk and funk, and were signed to Bradley Nowell’s Skunk Records early in their career. Their best-known recordings include the albums Everything You Need and Closer to the Sun, as well as the songs “2am,” “Collie Man” and “Officer.” In 2012, they performed with 311 and The Aggrolites on the Unity Tour, which visited amphitheatres across the United States. They later established Closer to the Sun as a recurring destination event in Mexico and have repeatedly headlined Red Rocks Amphitheatre.

311 is an American rock band formed in Omaha, Nebraska, in 1988. The group plays alternative rock shaped by reggae, funk, ska and rap, and is known for the songs “Down,” “All Mixed Up” and “Amber,” as well as the albums 311, Transistor and Soundsystem. The Unity Tour began in 1998 and became a recurring summer tour for the band. Two years later, 311 introduced 311 Day as a concert held around March 11; it developed into an extended, multi-set event, and later editions have taken place in Las Vegas.