Kara Elizabeth DioGuardi (born December 9, 1970) is an American singer-songwriter, record producer, music publisher, A&R executive, composer and TV personality. She writes music primarily in the light pop-rock, dance, and R&B genres. DioGuardi has worked with many popular artists; her songs have appeared on more than 159 million albums worldwide. DioGuardi is a Grammy nominated writer, 2011 NAMM Music For Life Award winner, 2009 NMPA Songwriter Icon Award winner, 2007 BMI Pop Songwriter of the Year, and has received 15 BMI Awards for co-writing the most performed songs on the radio.
DioGuardi served as a judge on American Idol for its eighth and ninth seasons. Her contract was not renewed for the next season. In 2008 she was appointed to the position of executive vice president of talent development at Warner Bros. Records, and has signed acts such as Jason Derülo and Iyaz. In 2011, She was a head judge on the Bravo singer-songwriter competition series Platinum Hit.