Add "Chump" by Green Day to your Rock Band™ song library. For music credits, visit www.rockband.com. Music downloads not rated by the ESRB.
Prices are shown for the region and currency returned by the XboxDB price crawler. Last checked March 7, 2026.
| Store | Price | Region | Link |
|---|---|---|---|
| G2A | 24.92 USD Historical | US | View offer |
| Kinguin | 26.58 USD Historical | US | View offer |
| Gamivo | 27.43 USD Historical | US | View offer |
| Instant Gaming | 30.15 USD Historical | US | View offer |
| CDKeys | 32.39 USD Historical | US | View offer |
| Microsoft Store Official | See store | — | Open store |
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