(TALKING) enter at your preril Past the valuted doors Where never seen before (MUSIC) Dexter's Laboratory the Smartest boy You ever seen when deedee belows here Experiments to smithereens There's a Gloom and Doom and where things go boom on DEXTER'S LAB!
If Dexter sang the theme song Enter at your peril Past the vaulted doors Where impossible things may happen that the world's never seen before Dexter In Dexter's Laboratory I'm the smartest boy you've ever seen But Dee Dee blows my experiments to smithereens! There is gloom and Doom! where things go boom! In my laboratory!