Teen Angels are an Argentine pop band formed during the development of the Cris Morena Group series Casi Ãngeles in 2007 until 2010. The band featured five members â Lali Espósito , Gastón Dalmau , Peter Lanzani , Nico Riera and Eugenia Suárez . By the end of the 4th and last season of Casi Angeles, when the band was about to start its 2011 World Tour, Eugenia Suárez left the band and was replaced by Rochi Igarzábal, who portrayed Valeria "Túmbera" Gutierréz in the TV series.