Sing a song of suspense, the palace has a spy.
4 seconds sound clip from Snagglepuss - Royal Ruckus (S1E7).
You can hear this line at 00:00:24.364 in the Blu-ray version of the episode.
Quote context
[...]
- And this time, I ain't kiddin' around.
- Hey, Crevad, wait for me. I'm goin' to Gay Paris too!
- Alouette, gentille alouette... and all that Frenchy-type jazzarooni.
(drumroll announcement with trumpets)
- Sing a song of suspense, the palace has a spy.
- And I'll kick his royal highness out, or know the reason why.
- Hello there. My name is Countdown, and I want to be king.
- Uh-oh. It's the royal guard.
- Get lost, you no-account count.
[...]