ABC/Mitch Haaseth(LOS ANGELES) — American Idol’s two-part finale concluded on Monday with the top three finalists learning that Maddie Poppe is the newest “American Idol.”

Caleb Lee Hutchinson came in second, with Gabby Barrett finishing third.

Poppe receives a recording contract with Hollywood Records, as well as an opportunity to perform at the legendary Hollywood Bowl, and at the Radio Disney Awards.

The evening also included performances from judges Lionel Richie, Katy Perry and Luke Bryan, as well as the top 10 finalists returning for performances with music superstars.

Here are Tuesday’s highlights:

The show opened with the top 10 finalists joining Richie for a version of his signature hit “All Night Long”

Nick Jonas and Mustard teamed up for their new single, “Anywhere.” Afterwards, top 10 finalist Jurneejoined Nick for his hit “Jealous.”

After Bryan debuted his new single, “Sunrise, Sunburn, Sunset,” he introduced Barrett, who joined him for a duet on “Most People Are Good,” the second single from Bryan’s latest album, What Makes You Country.

Next, top 10 finalist Cade Foehner jammed with Gary Clark, Jr. and eliminated Idol contestant Dennis Lorenzo on Clark’s “Bright Lights.”

Then, in one of the night’s most unusual pairings, Poppe delivered an encore performance of the song she auditioned with — “Rainbow Connection,” from The Muppet Movie. This time, she was joined by Kermit the Frog.

Hutchinson got to sing alongside one of his idols, Darius Rucker, on Rucker’s hit “Wagon Wheel.”

Late night host Jimmy Kimmel popped in to reveal the contents of an American Idol time capsule “buried in host Ryan Seacrest’s zucchini garden,” which contained alleged items from the show’s past, including a tiny V-neck tee shirt worn by Simon Cowell — complete with built-in nipples; Seacrest’s frosted hair tips from season 1; a collection of Steven Tyler’s scarves, the tips from Adam Lambert’s fingerless gloves; Sanjaya’s hair – followed by Sanyaya himself. The Jimmy Kimmel Live! host joked that Clay Aiken was also supposed to be in the capsule, but Sanjaya admitted that he was hungry after all that time and “ate him.”

Next, Barrett, Lee and Poppe joined Bebe Rexha for her hit “Meant to Be.”

Top 24 contestant Layla Spring, 16, and her 7-year-old sister Dyxie – who charmed the judges during the auditions — returned to sing “Blue,” by LeAnn Rimes, who made a surprise appearance to sing with the girls.

Katy Perry made good on a promise she made to top 10 finalist Catie Turner earlier in the competition to “personally sing” with her. They joined forces on Perry’s 2012 hit “Part of Me.”

Yolanda Adams and Michael J. Woodard, backed by a choir, performed Jackie DeShannon’s “What the World Needs Now.”

Caleb and Maddie – who revealed they are currently dating – dueted on a mash-up of “Somewhere Over the Rainbow” and “What a Wonderful World.” Afterwards, Seacrest presented the couple with a trip to Hawaii.

Finally, top 10 finalists Ada Vox and Michelle Sussett joined Patti LaBelle for her classic “Lady Marmalade.”

Copyright © 2018, ABC Radio. All rights reserved.