Eme 15 began recording their debut album in Mexico City in August 2011. The album includes 12 songs written by songwriters Carlos Lara, Lynda Thomas, and Pedro Muñoz. A bonus track is included for purchase with iTunes download in Mexico and Latin America. The album was produced by Carlos Lara.
The album was released in Mexico on June 23, 2012 for special purchase as a physical release at MixUp store locations. On June 26, 2012, the album was available for purchase as a digital download throughout Latin America via iTunes. The album debuted at number 2 in Mexico on July 1, 2012. It reached number one in Mexico on July 23, 2012, and was certified platinum in Mexico for sales of 60,000 or more units.
The group recorded four Christmas cover songs and two demos to be included on the re-edition version of their debut album. The re-edition album was released for digital download in Mexico on iTunes on November 13, 2012. Within 10 days of its release on November 13, 2012, the band's Christmas re-release album was certified gold in Mexico for 30,000 sales or more.
Wonderland was announced as the debut single from Eme 15's debut album. The band debuted their single for the first time at the Mexican Kids Choice Awards in Mexico City in September 2011. Written by songwriters Carlos Lara and Pedro Muñoz, the song also serves as the closing theme for Miss XV.
Solamente Tú was confirmed as the second official single from Eme 15's debut album. In early October 2012, the band filmed a music video on the beach for their second single, "Solamente Tú" in Acapulco, Mexico. The video premiered exlcusively on MTV Latin America's website on October 29, 2012. The single was available for digital download on iTunes for Mexico on October 9, 2012.