In the Netflix revival of Johnny Test, It had a completely different theme song, now being 20 seconds long, 10 seconds long if not including the title card at the end and the nuke sign at the beginning.
Lyrics[]
He's action packed and sister-charged
Dukey dogged for living large
In Triple cloning, T-rexxing, Royal throning, Johnny X-ing
You'll never know what's coming next
'cause it's J-J-J-J-Johnny Test!