Abracadabra, alakazam! World-renowned illusionist Leon Etienne charms and mystifies families at Barre Opera House with his interactive, all-ages jaw-dropper “Magic Rocks!” The charismatic entertainer — previously seen on TV shows the likes of “America’s Got Talent” and “Late Night With Jimmy Fallon” — delivers critically acclaimed illusions, sleight-of-hand tricks and laugh-out-loud comedy guaranteed to wow even the most cynical of nonbelievers. Archetypal magic tricks (think: slicing a smiling, unbothered assistant in half and miraculously breaking free from an impossibly tight situation) get an injection of modernity with next-level showmanship and electrifying, rock-infused spectacle. As Etienne reminds us, “The world needs magic now more than ever.”