Kara DioGuardi established herself as one of the most prolific pop songwriters of early 21st century Top 40. She specialized in up-tempo female-driven pop with a litany of chart-busters authored for such artists as Christina_Aguilera, Jessica_Simpson, Kylie_Minogue, and Hilary_Duff -- to such a degree that the said artists owed a significant degree of their success to her involvement. As an entrepreneur, DioGuardi established the corporation Arthouse Entertainment, designed as a launching pad to develop and mentor up-and-coming artists in the music industry -- and quickly pushed the company to number seven on the Billboard List of Top Ten National Music Publishers for three quarters in a row. By that point, DioGuardi had also established a catalogue of well over 250 songs. The songwriter stepped in front of the cameras in 2009 as a judge on season eight of the white-hot Fox reality series American_Idol, making her the second female judge opposite Paula_Abdul. Nathan Southern, Rovi

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