[Tennessee_Bob]

Cuul, unuzeer Teeger Vuuds stury. Sume-a gooys hefe-a ell zee loock. Zeen egeeen, sume-a gooys hefe-a tuns ooff muney - I'm soore-a iff I vere-a es veelthy es Teeger, I'd be-a es ettrecteefe-a es he-a is tuu. Oon zee oozeer hund, iff he-a vere-a in my seetooeshun, thees vumun vuooldn't spere-a heem a secund glunce-a. Bork Bork Bork!

[DallasMike]

Swedish Chef singing (About 387 K) The Swedish Chef makes chocolate moose.

Also see The Dialectizer.

[gumbo]

Cuul, unuzeer Teeger Vuuds stury. Sume-a gooys hefe-a ell zee loock. Zeen egeeen, sume-a gooys hefe-a tuns ooff muney - I'm soore-a iff I vere-a es veelthy es Teeger, I'd be-a es ettrecteefe-a es he-a is tuu. Oon zee oozeer hund, iff he-a vere-a in my seetooeshun, thees vumun vuooldn't spere-a heem a secund glunce-a. Bork Bork Bork!

Haha, good try! Swedes don't have a 'z' sound, though (the rare 'z' in Swedish spellings is pronounced like an 's').

But your rendition of sing-song is a worthy attempt. Skål to the Bork Bork Bork!