Rebelde launched RBD. RBD released nine studio albums, including records in Spanish, Portuguese and English. They have sold over 20 million albums worldwide, 17 million digital downloads, and have toured across South America, North America, Central America and Europe. In 2006, following the success of RBD, Anahí re-released her solo album, Baby Blue, under the name Una Rebelde en Solitario. The following year, a compilation album was released titled, Antes de Ser Rebelde. On 15 August 2008, RBD released a statement, stating that they had decided to split up. They went on one final tour, Gira del Adiós World Tour, which ended in late 2008. In November 2008, Anahi and Dulce María collaborated with Tiziano Ferro on a song called "El Regalo Más Grande". In April 2009, Anahí launched an official website and Twitter page announcing her first solo album since RBD's split. She debuted her first solo single since RBD, "Mi Delirio", at the 2009 Premios Juventud in Miami, Florida. It was released for digital download on 18 August 2009. Mi Delirio was released on 24 November 2009. The album has been certified Gold in Brazil, Anahí becoming the second Mexican artist — after Thalía — who was certified Gold in that country. According to Billboard, Mi Delirio World Tour was the seventh most profitable tour in 2010. She performed in 10 concerts, attended by over 35,000 people. Following the success of Mi Delirio, on 23 November 2010, Anahí released Mi Delirio – deluxe edition. The album includes all the songs released with the first album, plus four bonus songs: "Alérgico", "Pobre Tu Alma", "Ni Una Palabra" and "Aleph". The first two were released as singles. The album also contains a letter from Brazilian author Paulo Coelho to Anahí, a photo gallery, and a written message from Anahí to her fans. The album contains a song inspired by Coelho's book Aleph, which follows the third single "Alérgico". There are three known versions of the song: the album version with Anahí only; the Portuguese version featuring Brazilian singer Renee Fernandes, included in the Mi Delirio – deluxe edition (Brazilian edition bonus track); and a duet version featuring Noel Schajris, included in the Mi Delirio – deluxe edition (Colombian edition bonus track). (In the US, this version is instead being on a special edition, Alérgico (Fan edition) – EP.) In 2010, Anahí presented the Kids Choice Awards Mexico and was nominated