Michael D. Clark of the Houston Chronicle reviewed ‘American Idol’ season one champ Kelly Clarkson’s show at the Verizon Wireless Theater on Monday (May 9). Clark said that Clarkson “has succeeded in the way American Idol hoped its winners would. She has earned the right to call [Britney] Spears and Avril Lavigne peers. But Clarkson’s career requires one more step for longevity: further developing a musical identity.”