A rainbow of fun

Fans will probably notice if Sam, Murray, Jeff, and Anthony are in the wrong costume. The four guys, known as the Wiggles, wear their respective yellow, red, purple, and blue outfits at "Pop Go the Wiggles Live!" The lads will sing, dance, and become Dorothy the Dinosaur, Wags the Dog, and other characters. Young audience members are invited to come dressed as their favorite character and join the fun. Be sure to yell "Wake up, Jeff!" when the performer in purple falls asleep. 1:30 and 5:00 p.m. $18-$38. DCU Center, 50 Foster St., Worcester. 617-931-2000. www.ticketmaster.com