Jessica Simpson performed live on 'American Idol' after a 15-year hiatus, her last TV appearance being a 2010 Rockefeller ...

Jessica Simpson used a few not-so-common tricks to help combat her nerves for her first television performance in 15 years.

Jessica Simpson returned to TV for the first time in 15 years, performing 'Blame Me' on the 'American Idol' season 23 finale ...

Jessica Simpson debuted a brand-new hair color as made a special appearance on the season 23 finale of 'American Idol' on May ...

Jessica Simpson makes a surprise return to singing live on TV, performing on the 'American Idol' finale as Jamal Roberts is ...

The singer delivered her first TV performance in 15 years during the season finale of “American Idol” on May 18. She sang her ...

Jessica Simpson reveals she felt like she was 'dying' during her 'American Idol' season 23 finale performance, her first TV ...

The Grammy-nominated singer took the mic, singing a cover of Nancy Sinatra's "These Boots Are Made for Walkin'" and her new ...

The singer tore through her new track "Blame Me" and covered Nancy Sinatra's "These Boots Are Made for Walkin'" ...

"This isn’t the end… it’s just the beginning," wrote winner Jamal Roberts. American Idol has crowned its newest winner.