I thought I'd linked to this once but I did a search and apparently not. It's another one of those Kellogg's cereal commercials I like so much because of master voiceman Daws Butler. Here, he's Snagglepuss leading us in a merry sing-a-long for the thing everyone loves to sing about…Kellogg's Cocoa Krispies.
You will notice that Daws gets a screen credit on this. If you're curious why, I explained it back in this post.