The pair shared the stunning lineup of famous friends that are involved!
The 33-year-old fashion designer opened up to ET at Bravo's 'Top Chef' and 'Project Runway' FYC red carpet event.
The 'Idol' judges also dished on Lionel Richie's off-script save.
ET spoke with the 'American Idol' judges after the Live performances on Monday about the group of talent.
The pressure was on for the remaining contestants as they vied for a coveted spot in the top 10.
The pop diva was blown away by 'Idol' hopeful Alyssa Raghu's rendition of 'The One That Got Away.'
Katy Perry experienced a wide range of emotions as the top 14 contestants took the stage on 'American Idol.'
The 'Chained to the Rhythm' singer is letting it all out!
The singer teased her appearance via social media on Sunday.
The newly engaged couple was spotted sharing a passionate kiss on the festival grounds.
ET caught up with Perry on the red carpet at the 10th Annual DVF Awards in New York, where she was being honored.
The singer and 'American Idol' judge opened up to ET at the 10th Annual DVF Awards in New York City on Thursday.
Katy Perry, Jennifer Lopez, Alex Rodriguez and Jared Leto are also among the star-studded names for the annual event.
It's been an emotional season for the judge.
