Justin Timberlake's back in full showman mode ... taking to the stage at the theatre inside the lavish Fontainebleau Las Vegas for its grand opening.
The singer was suited and booted Wednesday night in a white tux for his first performance since April 2019 ... singing tunes from his catalog of hits during a dazzling night of festivities at the brand-spankin' new upscale resort.
In the clip, he's seen performing with a band and backup singer ... and later taking to the piano -- basically pulling out all the stops for the evening, for which he was paid a hefty $6.