Let's make this birthday one to remember.

81 years old (Born on April 13, 1944)

Happy Birthday, Jack Casady—the man whose powerful bass grooves made Jefferson Airplane soar and Starship shine! Your legendary licks laid the foundation that rocked Woodstock festivals into timeless history. Seriously, your riffs should be deemed a protected national treasure: sacred ground for rock 'n' roll pilgrims forevermore.

Congratulations on keeping audiences captivated since your Hall of Fame induction in 1996—you've proven beyond doubt that age is merely an illusion caused by lack of rhythm. Here's to you continuing to defy gravity—both musically and physically—and dropping those iconic beats as effortlessly as always. Rock onward spectacularly (and loudly), birthday legend!