López has been composing songs since the age of seven and in her teenage years performed in a number of bands with her friends. In 2007, Anni started to perform as a solo artist and word of her spread among music fans through MySpace. In 2008, she was signed by Subterfuge Records, Spain's biggest independent label, with whom she released her debut album Start, Restart, Undo the following year. Anni was offered the chance to perform at the Festival Internacional de Benicàssim in 2009 before having released her album. This was followed up by a massive tour of Spain and several other countries. In October 2009, Anni's acoustic cover version of Take On Me, by A-Ha was used on a television advert for a major fast food chain. She was also voted Artist Sensation of 2009 by El País online.