Cansei de Ser Sexy is the first full-length album by Brazilian indie rock band CSS. It was released on October 9, 2005 by Trama in Brazil, where it reportedly sold 5,000 copies and failed to chart. It was released in the United States on July 11, 2006 on the Sub Pop label, and in the United Kingdom on January 22, 2007 by Sire Records. A limited edition version of the album included a CD-R. The purpose of this was that the buyer could burn a copy of the album onto the CD-R to give to someone else as a gift, paying homage to the effects of digital technology upon the dissemination and popularization of music.
The international version excluded five tracks from the Brazilian version (two of which appeared as bonus tracks on the US iTunes edition of the album), while including two tracks from the Brazilian-released EP CSS Suxxx.
All tracks written by Adriano Cintra and Lovefoxxx, except where noted.
The album received mainly positive reviews—it was featured on Uncut's list of the 50 best records of 2006 at number eighteen, NME's list of the 50 best records of 2006 at number five and Q's list of the 100 best records of 2006 at number eighty-nine. Despite the reviews, it failed to chart in the United States. The album won the 2007 PLUG Independent Music Award for Best Punk Album.