The band gave concerts and embarked on promotions in different cities in Argentina, and in countries such as Peru, Chile, Israel, Spain, Uruguay, Mexico, Venezuela, Panama, Costa Rica, Guatemala, Dominican Republic, Ecuador, Brazil and Italy.
The band gave support to Casi Ángeles a series of recitals at the Teatro Gran Rex in Buenos Aires, Argentina during that year.
The third season began on April 20, 2009 on Telefé, giving way to the release of the third studio album called homonymous, Teen Angels III (following the trend of the previous).
In July they recorded the video clip Cada Vez Que Sale El Sol, a cover of the song performed by the Argentine singer Sergio Denis, for the new campaign of the brand Coca-Cola.
The 27 of September are presented for the first time in Madrid, Spain, in the Telefónica Flagship Store de la Gran Vía in a showcase for guests and press, like promotion of the cd.
In the last quarter of the year, Teen Angels made their first promotional tour of Chile, Peru, Venezuela, Guatemala, Dominican Republic, Costa Rica and Italy.
With the arrival of the holidays, the quintet recorded a new song called Navidad and a new video for Coca-Cola and his campaign La magia está con vos.
There was filmed the video clip of "Miedo A Perderte" produced by Carlos Jean, an advance of the fourth studio album, titled Teen Angels IV.
On July 27, Teen Angels: La Historia was released, a CD + DVD containing an unpublished song: No Te Digo Adiós, created to end the series Casi Ángeles.
Three singles were released from the tour: the first, entitled Que Llegue Tu Voz, was recorded at the Gran Rex Theater and reached high positions; the song Mírame, Mírate had a videoclip shot in Cataratas del Iguazú; and Loco, the most controversial, showed the band in a more sensual and mature context.
Amid a controversy over the recruitment, on November 20, the band performed at the opening of the Femme Fatale Tour of Britney Spears in the city of La Plata.
On February 28 came the first issue of the sixth studio album La Despedida in the telenovela Dulce amor, which features in its cast with Nicolás Riera and Rocío Igarzábal.
Lali Espósito explained that the reasons had to do with the incompatibility of the different careers of the members, "If we made the decision to continue it would be difficult to get together, go on tour, because Nico and Rochi are recording Dulce Amor, Peter is in La Dueña, Gas is going to New York City and i premiered with Las Brujas de Salem.
Also at the end of the same year was released a limited version of the Lenovo G450 notebook, it had a design related to the fiction, besides owning in its disc content of the program.