Man, I have a bunch of earworms stuck in my head. All because of an audition. The thing about it is, I have never heard some of these songs before, but because I played them over and over, they are now stuck in my head.
Old Man by N’Dea Davenport
Try by Pink
Fooled Around and Fell in Love by Elvin Bishop
and
What Hurts the Most by Rascal Flats

All of these are pretty fun to play too.

https://www.youtube.com/watch?v=uwm4j7YBhMw

https://www.youtube.com/watch?v=LcM9ElA1VHk