Tilly and the Wall was an indie pop group from Omaha, Nebraska. Their name originated from a children's book called Tillie and the Wall, written by Leo Lionni. They are particularly noted for having a tap dancer, Jamie Pressnall, provide percussion, instead of a drummer.

Tap dance is a form of dance that uses the sounds of tap shoes striking the floor as a form of percussion; it is often accompanied by music. Tap dancing can also be a cappella, with no musical accompaniment; the sound of the taps is its own music.