Tchello (born Eduardo Simão Lopes; January 2, 1975 in Belo Horizonte, Minas Gerais) is the former bassist and co-founding member of the Brazilian rock band Detonautas Roque Clube.

In 1997, Tico Santa Cruz appeared in a chatroom asking if anyone could play instrument, and then, Tchello, who was also in the room, answered positively and became known by his nickname.

The singer Tico lived in Copacabana, Rio de Janeiro and Tchello had a guesthouse in Ilhéus, Bahia.

The 11:11 is not a band but a group of musicians and artists of various nationalities who meet, virtually or otherwise, since 2006, to jam sessions to discuss about technology, art and musicality.

Fabrizio, then, indicated the book: "11:11 – Abrindo os Portais" (Opening the Gates), which influenced the name of the project, which has already signed some soundtracks for short films.