You cant believe anything you see or hear on the internet. Back in the 80s my friend got a job as guitarist with "Pretty Poison" - they loved his audition, his look, and his sound and hired him to tour. When he showed up for rehearsal, he had his amp of choice ... and it was NOT a Marshall Stack. The band leader wanted the look of the stack on stage, but Louie was committed to his "sound" so he hollowed out the bottom cabinet of the stack, and placed his little 12" combo amp inside, and that was the cab that they mic'd on stage. He rigged the input of the "dummy" head on to to connect to the hidden amp, and no one knew the difference.

Billy Joel has an entire arsenal of keys, and computers BELOW the stage that no one sees ... Hollywood, YouTube, Movies - it's all smoke and mirrors. Just get out there and make something happen.