It was last co-hosted by Alain Soulat and Lucia Covarrubias, and involved two teams of young adult contenders participating in unique challenges and performing arts to win a top prize at the end of the competition.
Calle 7 began airing on January 12, 2009, at 6 pm and was presented by Martín Cárcamo and Karen Doggenweiler.
The competition started on March 9 and the finale of the season was on July 31 and the winners was Francisco "Chapu" Puelles.
The competition system is the same as the one utilized in the first season; on Mondays and Wednesdays, the two teams compete in three events, each worth 100, 200 and 300 points.
Finely the third season of Calle 7 began two weeks after at the end of the pre-season, in this period of time the program was not delivered due to the earthquake that struck the central-southern of Chile, becoming the March 15.
In October 2010 it was announced that former co-host Jean Philippe Cretton was replacing Martin Carcamo as the program's host.
The online program, which was led by Jean Philippe Cretton until he became the co-host of Calle 7, is a sort of online backstage where participants interact with viewers, who send their comments immediately through a chat system through the platform provided Cover It Live, and subsequently was formally led by Valeria Ortega a few days after Nicolas Opazo did, then made Ronny "Dance" Munizaga and from April 19, 2010 was taken up officially by Valeria Ortega.