Planet Girls is an archival studio album by the American rock band Sponge, released in 2024 through Sound City Records.

The album was originally slated for release in 1999 before being shelved by Beyond, leading to the release of Sponge's third album, New Pop Sunday.

Sponge recorded most of Planet Girls while they were still with Columbia Records, with the help of producer Kevin Shirley (Aerosmith, Journey, The Black Crowes).

Sponge had re-recorded the album and subsequently released New Pop Sunday in place of Planet Girls.

[2] On April 20, 2024, to coincide with Record Store Day, Sponge partnered with Sound City Records to release Planet Girls on vinyl, initially through in-store purchase, and then online purchase starting April 21.