Which song can't you get out of your mind?

My son recorded this because he wanted me to learn it and show him how to play it.
Now it is stuck deep in the grey matter ...
[youtube=https://www.youtube.com/watch?v=k6EQAOmJrbw]

Stupid TV commercial jingle, "855-MIKULKA".

Surfin Safari has been stuck in my head since 1990.

Theme from F troop

Here's to Us/Halestorm

"Wenn ich tanzen will..."

[youtube=https://www.youtube.com/watch?v=rP16cHaeeB8]