After signing with Interscope, Gaga began working on her debut album The Fame, which was released in 2008. It produced the global chart-topping singles "Just Dance" and "Poker Face". She collaborated with different producers, primarily RedOne, Fernando Garibay, Martin Kierszenbaum, and Rob Fusari. The album has influences of the 1980s pop music and discusses Gaga's love for fame while also dealing with subjects such as love, sexuality, money and drugs. Initially intended to be a re-release of her first album, an EP titled The Fame Monster (2009) included eight newly recorded tracks. Its tracks include "Speechless", written solely by Gaga, as well as "Alejandro" and "Bad Romance". The EP explores the darker side of fame.