Soccer Mommy is a real-life band that consists of Graeme, Julian, Rodrigo, Rollum, and Sophie. The band collaborated with Club Penguin Rewritten and performed a concert on April 16, 2020 at the Concert Hall to promote their album Color Theory. During the concert, players could obtain a free item from each of the band members' Player Cards.
- Graeme is the bassist for the band and plays the black bass guitar.
- Julian is the guitarist for the band and plays the White Electric Guitar.
- Rodrigo is the keyboardist for the band and plays the Green Keytar.
- Rollum is the drummer for the band.
- Sophie is the lead singer and guitarist for the band and plays a black guitar. She is also the founder of the band.
- Circle in the Drain
- Royal Screwup
- Night Swimming
- Crawling in My Skin
- Yellow Is the Color of Her Eyes
- Up the Walls
- Gray Light
- They are the first real-life guest stars to appear in Club Penguin Rewritten.