It ain’t easy being green – that’s the gimmick, in a sense, behind the blockbuster musical re-telling of The Wizard of Oz, one that refracts L. Frank Baum’s world through the sensibility of the green among us. Adapted from Gregory Maguire’s novel, Wicked features a tuneful – and dare I say pop-u-u-lar? – score by Stephen Schwartz, and gives us the fraught backstory between two young witches: Elphaba (talented, socially-awkward, green) and Galinda (charismatic, fashionable, non-green). Their unusual, frenemy relationship sets up the world of Oz in surprising and occasionally touching ways, and helps account for the show’s impressive longevity in New York: 15 years now on Broadway, and with a movie (apparently) still in the works. In San Antonio, Wicked boasts an unusually long stop – three weeks, and stars Mary Kate Morrisey and Ginna Claire Mason. Grab a ticket and make your friends green with envy.