The performances are crisp and engaging and the music is both energetic and memorable in this charming tale of adventure made for the young set. Dora (of Explorer fame) and Rubble and Marshall (from Paw Patrol) are the MCs, and a host of other characters from the rest of the Nick Jr. cable TV show lineup appear. All the songs, save two (one is the finale, which in the storyline is written by Rubble), are from the cable shows, so children will be happy to hear and dance to their favorite tunes. Shimmer and Shine have four of the familiar songs, and those two talents--like virtually all the performers here college-trained in musical theater--bringing to life the genies-in-training redefine unison in song and step. Dora gives a warm center to the show, Rubble as the DJ energetically raps and rocks, and Marshall is winningly upbeat. Surprise character appearances throughout the program delight the kids in the audience. The runtime of the show, which has an intermission, is about 1 hour and 30 minutes. There is a good selection of Nick Jr. Live merchandise, ranging in price from $5 to $20 or so; i.e., about half that charged at a Broadway show. Be on time, as curtain is just a few minutes after the hour. All in all, it's 90 minutes of great fun for the tots and tots-plus--and parents and grandparents along for the day can expect to be humming a tune or three themselves on the way home.