Acústico MTV: Bandas Gaúchas was a project by MTV Brasil, which brought together the bands Bidê ou Balde, Cachorro Grande, Ultramen and the singer Wander Wildner (former leader of the Replicantes) in a single show, broadcast on TV and released on CD and DVD. in 2005. It was an innovative project, as it brought together 4 artists in a single acoustic and, for the first time, used a pre-defined theme: rock gaucho. The main idea of the project (several bands of the same genre in a single project) was repeated in the MTV Ao Vivo 5 Bandas de Rock project, which brought together 5 pop rock and emocore bands in the same show.
| Actor | Role |
|---|---|
| CCarlinhos CarneiroSelf - Bidê Ou Balde | Self - Bidê Ou Balde |
| LLeandro SáSelf - Bidê Ou Balde | Self - Bidê Ou Balde |
| RRodrigo PillaSelf - Bidê Ou Balde | Self - Bidê Ou Balde |
| VVivi PeçaibesSelf - Bidê Ou Balde | Self - Bidê Ou Balde |
| BBeto BrunoSelf - Cachorro Grande | Self - Cachorro Grande |
| GGabriel AzambujaSelf - Cachorro Grande | Self - Cachorro Grande |
| MMarcelo GrossSelf - Cachorro Grande | Self - Cachorro Grande |
| PPedro PelotasSelf - Cachorro Grande | Self - Cachorro Grande |
| DDJ AndersonSelf - Ultramen | Self - Ultramen |
| JJúlio PortoSelf - Ultramen | Self - Ultramen |
| LLeonardo BoffSelf - Ultramen | Self - Ultramen |
| LLuciano MalásiaSelf - Ultramen | Self - Ultramen |
| MMarcitoSelf - Ultramen | Self - Ultramen |
| PPedro PortoSelf - Ultramen | Self - Ultramen |
| TTonho CroccoSelf - Ultramen | Self - Ultramen |
| ZZé DarcySelf - Ultramen | Self - Ultramen |
 Marcelo Falcão CustódioSelf | Self |
 Roger Rocha MoreiraSelf | Self |
 Paulo MiklosSelf | Self |
| WWander WildnerSelf | Self |