Lyric provided by www.seekalyric.com

Chillin' at the lair.
Snarf, me, and the twins.
My favorite feline is the one who wore cheetah skins.
Fighting evil, we drink milk, and we purr a lot.
Ask me to cross them, and I would say I'd rather not.
I'd rather not!
Thundercats Hoooooo!
Thundercats Hoooooo!
I'm Lion-O! I'm Lion-O!
I'm Lion-O! I'm Lion-O!

Thundercats Hoooooo!
Thundercats Hoooooo!
I'm Lion-O! I'm Lion-O!

Sword of Omens, come to me.
Your eye opens so you can see.
Fly from the sheath into my paw.
I am the greatest Thundercat of them all…

I'm Lion-O, I'm Lion-O!
I'm Lion-O, I'm Lion-O!
I'm Lion-O, I'm Lion-O!
I'm Lion-O, I'm Lion-O!