Well, the goofy Hogan's Heroes theme song on this thread reminded me that I once put down words to the Get Smart theme. Here goes.

Get Smart Theme Song (by frum613)

When your spying,
No sense hiding,
Cause when evil strikes
The man who likes
To fight for good and nice is Maxwell Smart.

If your evil,
You'll have your hands full,
Oh you'd better have a change of heart
Because you'll just run into Maxwell Smart.

Bumbling spy,
Clever guy,
Gadgets poised,
Chief's annoyed.

So go and get Smart,
He has a straight part.
He turns out to always be the pest
That won't give evil any chance to rest.

Get Smart.