American Idol 'American Idol's sixth season Top 4 take the stage and perform 05/09/2007 American Idol's sixth season Top 4 took the stage last night and performed disco tunes from the 1970s while being mentored by Bee Gees' singer Barry Gibb. Read More RELATED NEWS Chris Sligh, former 'American Idol' finalist, reveals he is battling Covid-19 and pneumoniaJordin Sparks and husband Dana Isaiah welcome first child togetherJordin Sparks "in shock" and "numb" following deaths of four loved ones in a week TAGS: American Idol Paula Abdul Mariah Carey Simon Cowell Melinda Doolittle Randy Jackson Lakisha Jones Blake Lewis Haley Scarnato Ryan Seacrest Jordin Sparks Barbra Streisand Aretha Franklin Michael Jackson Barry Gibb