2021 in downloadable songs for the Rock Band series

The Rock Band series of music video games supports downloadable songs for the Xbox One and PlayStation 4 versions through the consoles' respective online services. Users can download songs on a track-by-track basis, with many of the tracks also offered as part of a "song pack" or complete album at a discounted rate.

List of songs released in 2021
The following table lists the available songs for the Rock Band series released in 2021. All songs available in packs are also available as individual song downloads on the same date, unless otherwise noted. Dates listed are the initial release of songs on PlayStation Network and Xbox Live.

Starting from October 6, 2015, all music added to the downloadable content catalog is exclusive to Rock Band 4. In addition, due to changes in the charting format and gameplay of Rock Band 4, the released songs no longer support keyboard or Pro guitar and bass (future downloadable content will continue to support vocal harmonies and Pro drum charts), and most songs no longer display "family friendly" or "supervision recommended" ratings. Downloadable content from previous Rock Band titles (excepting The Beatles: Rock Band) is forward-compatible in Rock Band 4 within the same system family (Xbox 360 downloads are usable in the Xbox One version and PlayStation 3 downloads are usable in the PlayStation 4 version) at no additional cost.