And the one that sums us all up: 
This got played on the radio a few days ago, and itâs still rattling around in the olâ brainpan:
ETA: The song was played, not the video. Because of course you donât play videos on the radio. [/pedant]
Chewing gum got an earworm into my head, thanks:
I did one of the climate marches yesterday. âThis is what democracy looks like! (This is what democracy looks like!)â Over and over and over. I still have that going around between my ears. If I can catch a new one here itâll be a relief.
The little tune at the end of this has basically set up home in my head.
One of my favorite camping songs.
Swimming, swimming,
In the swimming pool!
I canât seem to get this one out of my head today:
We were maybe more laid back in my youth, maybe less formal as well. (âYes. Yes. Yes.â - sheesh! How do you rock out if you arenât getting your yeah-yeahs out? 
)
I didnât have an earworm until I saw the title of this threadâŚ
I usually avoid music with songs and melodies so that I am immune to earworms. But for some reason I couldnât stop thinking about this one while working on the greenhouse.
@Kimmoâs mention of Gaia in the âWhat creeped you outâ thread just triggered this earworm. Itâll probably be with me all nightâŚ
The Shamen are the business.
These are the things that are currently taking up space in my head.
First, the worldâs catchiest song about general relativity and the time dilation effect.
And this little slice of 90s nostalgia:
Feeling a bit perverse, as neither idol nor metal is my thing, but definitely an earwormâŚ
The King of Skiffle!