MGM Grand Garden Arena, March 11

The venerable reggae rockers celebrated “311 Day” with three hours of feel-good and stay-positive vibes. The band had everyone dancing to their set of alternative fusion funk rock, which spanned their 24-year career and included hits (“Down,” “All Mixed Up” and “Beautiful Disaster”) as well as deeper album cuts (“Use of Time” and “Who’s Got the Herb?”).

Vocalists Nick Hexum and Doug “SA” Martinez harmonized perfectly together, and drummer Chad Sexton performed a killer solo that included synth sound manipulation. The seven-piece Unity Percussion Ensemble joined the dance party for a few songs, which added a cool texture of reggae through the use of xylophones and steel drums.

At times, 311 put the crowd into a blissful dream state with their more ambient songs (such as “Stealing Happy Hours”) and trippy video effects. After the crowd chanted “three eleven, three, three, eleven,” the band came back for one more encore with a song that summed up the night: “Feels So Good.” ★★★★☆