Back in 2013, Sammy Hagar launched his Four Decades of Rock tour.

Looking back at Sammy Hagar's best songs from each of his four decades in rock, we learned that, shockingly, less than one-fourth of them involve automobiles in any way, shape or form.

We've also included tracks from the various bands the Red Rocker has been a part of -- Montrose, HSAS, Van Halen, Chickenfoot -- in addition to those from his solo career in our roundup.

The result is a 40-song collection of strong, melodic hard-rock tunes that showcase just how consistently Hagar has expressed his love for life and upbeat, can-do spirit.

You Think You Know Sammy Hagar?