Rob Fusari, who helped Lady Gaga write some of her earlier songs, compared her vocal style to that of Freddie Mercury. He nicknamed her Gaga, after the Queen song "Radio Ga Ga." She began to use it as her stage name and was known thereafter as Lady Gaga. Catch her double performance in Miami as she plays at the James L Knight Center on december 31, 2009 and January 2, 2010.