They've got to be clean, they've gotta be clean, ahhhahh We wash our hands whenever we eat And in the bath we wash our ears, our elbows and feet We gotta be clean We gotta be clean It's healthy and keen We gotta be clean Ahhh Ahhh (Yes sir!) We start each day by brushing our teeth (Brush brush!) And getting the plaque and stuff off the smile underneath We gotta be clean We floss in between Like the string must be green We gotta be clean Each day's a fight with the forces of dirt (Dirt! Dirt! Dirt!) Battling the smudge and the smear and the squirt (Squirt! Squirt! Squirt!) What do we do when our shirt is all covered with mustard? (Mustard! Mustard! Mustard!) You may just wear it and wear it and wear it for weeks (No!) Not Guster... We wash it, then we wear it We may be sad We may be beat We may be cross or tired or mad but we'll always be neat We gotta be clean Like all dishes we've seen Or a fresh nectarine Or some laundry that's been through the washing machine We gotta be clean (We got to be ahhhhh!)