The Who Septuagenarian Wasteland

10/10/2016 7:01 AM PDT

The Who kicked off the final night of the "Oldchella" (aka Desert Trip) music festival Sunday night, and the rock legends were prepared ... for dehydration.

While 71-year-old Pete Townshend jammed on a guitar solo, he kept a bottle of Pedialyte nearby. It's important to keep up on your fluids in the desert, especially for seniors.

He won't get fooled again!