Jewelry to ornament the ear; usually clipped to the earlobe or fastened through a hole in the lobe.
An ornament worn on or hanging from the lobe of the ear.
She wore the most beautiful earrings I've ever seen.
A song that is inexplicably in your head when you wake in the morning, and not a song that you have listened to recently. Unlike an earworm, it is generally a song that you like.
My earring this morning was the Clash song "Corner Soul". Haven't listened to it in a while, but it's a good one to have in my head.