Lionel Richie took viewers back to the 80's with a performance of the classic "We Are the World." Lionel Richie was joined by the season's winner Just Sam alongside other finalists Jonny West, Dillon James, and Daly City's own Francisco Martin. There was also an appearance by fellow judges Katy Perry and Luke Bryan, and former Idol alums Scotty McCreery, Lauren Alaina, Kellie Pickler, Laine Hardy, Gabby Barrett, Alejandro Aranda, Jordin Sparks, Katharine McPhee, Phillip Phillips, and Ruben Studdard.
Watch the full video below.