Because that’s the joke—but there is a clever layer under the silliness.
In the Spam sketch, the Vikings sing instead of talk for a few reasons:
1. To drown everything out
Their chanting gets louder and louder until it overpowers all normal conversation, just like Spam overwhelms the menu. That mirrors the idea of something intrusive you can’t escape.
2. Musical logic = instant chaos
Having them sing (not just shout) turns annoyance into absurd theater. Monty Python loved using sudden musical numbers to push a sketch from “funny” into “unhinged.”
3. Vikings = absurd contrast
Vikings are:
Loud
Boisterous
Stereotypically rowdy
Making them gleefully chant about canned meat is pure, deliberate nonsense. The bigger the contrast, the funnier it lands.
4. Comedy escalation rule
If they just talked, the sketch would stall. Singing lets the volume, repetition, and absurdity escalate naturally until it collapses into chaos—classic Python structure.
5. Meta-joke (sneaky one)
The Vikings behave like a Greek chorus, constantly reinforcing the theme (“Spam everywhere”) while being completely useless to the plot.
So yeah—on the surface it’s ridiculous. Underneath, it’s a perfect metaphor for spam: loud, repetitive, cheerful, and impossible to ignore.