Boulevard Pool at the Cosmopolitan, April 19

Behind a glowing white cross, the French electronic duo of Xavier de Rosnay and Gaspard Augé took control of the Boulevard Pool deck. A sea of cellphones captured the set’s opening moments, which started with the traditional “Here Comes the Bride” processional and shifted into Justice’s first song, “Genesis.”

The glitchy, bass-driven beats instantly worked the audience into a fury, as knobs on what looked like a faux space-age super-computer blinked and Marshall amps flashed in choreographed colors. Finger lights danced over concert-goers’ heads, as did a few crowd-surfers. One guy even decided the cross was an invite to rush the stage and assume a crucifixion pose in front of it; he was promptly removed by security. The most stunning visual effect: when the cross opened up to reveal a keyboard.

Despite all the excitement, Justice’s set could have offered a bit more energy and variety from their vast catalog. Favorites such as “D.A.N.C.E.” and “On ’n’ On” were enjoyable, but Justice dragged out their career-creating remix of Simian’s “Never Be Alone (We Are Your Friends)” as both the last track and the encore until it became a bit monotonous. Further putting a damper on a potentially great evening was the short length of the set. It’s surprising for an electronic act to play only an hour, and disappointing for those that wanted to keep waving their glow sticks in the nighttime air. ★★☆☆☆