I've always been horrendously ignorant of who sings my favorite songs. It would take me a very looong time to research a top-ten list, with artists and styles from the 1800s to now.
My current favorite is "Everything is Awesome" from the Lego movie. It's a very happy, stupid song that just makes you feel good. That is fortunate, because it takes over a week to get it out of your head! (Like "Call Me Maybe" from a couple of years ago.)
Slotted spoons don't hold much soup. - Stephen Sondheim