Let's make this birthday one to remember.

54 years old (Born on March 23, 1971)

Happy Birthday to the mighty Bill Kelliher, Mastodon's shredmeister extraordinaire! From riffing relentlessly with Lethargy and Today Is The Day to ruling stages worldwide with jaw-dropping solos that earned you Metal Hammer's Golden Gods Best Shredder award in 2007—you've lived it loud.

Through epic sonic journeys on albums like "Leviathan" or your more recent powerhouse hits on "Hushed and Grim," you've remained a true master of metal. May this birthday bring you mountains of guitar strings, amps turned to eleven, endless inspiration—and maybe one day explain how exactly those masterpiece riffs are physically possible? Keep shredding strong!