Katy Perry once told an ‘American Idol’ contestant to ditch the glitter — and the audience booed loudly

Katy Perry once told an ‘American Idol’ contestant to ditch the glitter — and the audience booed loudly

Katy Perry once told an ‘American Idol’ contestant to ditch the glitter — and the audience booed loudly Katy Perry had a love-hate relationship with the fans of 'American Idol' throughout her seven years of judging tenure. The 'Roar' singer is often praised for her insightful feedback to contestants; however, she has also faced criticism for her bold and sometimes harsh remarks. Still, no one had anticipated seeing Perry booed on the 'American I…