Tamo Aí na Atividade is the sixth studio album by Brazilian alternative rock band Charlie Brown Jr., released in December 2004 through EMI. The band's first album since 1999's Preço Curto... Prazo Longo to be produced by Rick Bonadio, it spawned the hit singles "Champanhe e Água Benta" and the titular "Tamo Aí na Atividade". Also notable is "Todos Iguais", the only credited work of bassist Champignon as a drummer in all of his career. The music video for "Champanhe e Água Benta" received nominations for the MTV Video Music Brazil award in the "Video of the Year", "Best Rock Video" and "Best Editing in a Video" categories in 2005; directors Roberto Oliveira and Alex Miranda were nominated in the "Best Direction in a Video" category.

Charlie Brown Jr. was a Brazilian rock band from Santos, São Paulo. The group was popular with disadvantaged youth because of their relatable commentary about social issues and the frequent use of skate punk and hip hop slang in their songs. The band won two Latin Grammy Awards and was one of the most-popular Brazilian bands of the late 1990s to mid-2000s.