By 2008, Gaga had relocated to Los Angeles in order to work extensively with her record label to complete her debut album and set up her own creative team Haus of Gaga, modeled on Andy Warhol's Factory. The Fame was first released on August 19, 2008 to slow radio play. Gaga supported it by performing around Europe and in small gay clubs around the US in addition to being billed as a supporting artist on the North American leg of New Kids on the Block's reunion concert tour. A sleeper hit, lead single "Just Dance" had preceded the album's release by four months but only hit the summit of the international charts in January 2009, provoking the instant success of the album, earning her first Grammy Award nomination (for Best Dance Recording) and becoming one of the best-selling singles worldwide. Gaga achieved a greater unexpected success when "Poker Face", another sleeper hit, reached number one in most major music markets worldwide in early 2009, selling 9.8 million singles worldwide. The follow-up single won the award for Best Dance Recording at the 52nd Grammy Awards over nominations for Song of the Year and Record of the Year.
Continually experimenting with new musical ideas and images, Gaga's musical and performance style is the subject of much analysis and scrutiny from critics. She professes that she is "liberating" herself by constantly reinventing her sound and image, insisting that she has been drawn to such a practice since her childhood. Vocally, Gaga possesses the range of a contralto and exhibits "overwhelming expression, instinctive vocal phrasing, '80s rock reminiscent chest belts and animalistic vocal ticks" while being able to move through 2.4 octaves. Refusing to lip sync, Gaga – whose range is frequently compared to those of Madonna and Gwen Stefani – has manipulated her vocal style over the course of her career yet considers Born This Way (2011) "much more vocally up to par with what I've always been capable of." In summation of her voice, Entertainment Weekly wrote, "There's an immense emotional intelligence behind the way she uses her voice. Almost never does she overwhelm a song with her vocal ability, recognizing instead that artistry is to be found in nuance rather than lung power.