The band was formed in Santos, São Paulo in 1992 by members of What's Up, a former project of vocalist Chorão that, by the time of its demise, already had in its line-up bassist Champignon, guitarists Marcão Britto and Thiago Castanho, and drummer Renato Pelado.

[2] Castanho left the band in 2001, after the release of their third album Nadando com os Tubarões, and they continued as a quartet until Tamo Aí na Atividade, when a series of creative divergences prompted the departure of its entire line-up.

[4] Pinguim's contract expired in 2008, after which he was replaced by Bruno Graveto, and in 2011, following the departure of Gomes, Champignon and Marcão Britto returned to make Charlie Brown Jr. a quintet again.

[5] While the band was working on their tenth studio album, La Familia 013, Chorão, who had always struggled with substance abuse, died due to a cocaine overdose on March 6, 2013, effectively ending the group's activities.

On July 13, 2021, the live album Chegou Quem Faltava, originally recorded during a 2011 show, received a posthumous release through Sony Music.