The stars recorded messages in a bid to bring joy to the kids, many of whom have had life-long wishes postponed due to the coronavirus.
The actress and newest member of the 'AGT' judges' panel opened up to ET on Wednesday.
The 'Modern Family' actress has joined the 'AGT' cast for the show's upcoming 15th season.
Find out who took home the ultimate trophy following Monday's grand finale!
The gang drama is available Jan. 24.
Monday's new episode saw Cowell praising 'the Dark Side.'
13-year-old Angelina Jordan wowed the judges with a soulful cover of Queen's 'Bohemian Rhapsody.'
A new report alleges Union's departure from the show came after she made several complaints to NBC execs.
The beloved sitcom already got the green light for another season!
Klum will join 'Britain's Got Talent' judge Alesha Dixon when 'Champions' returns next year.
See who walked away with the grand prize following a star-studded finale on Wednesday.
Abdul's appearance left Simon stunned during Wednesday's star-studded season 14 finale.
NBC's hit series returns on Tuesday and ET is breaking down all the episode's biggest moments.
Find out which five acts round out the top ten, who will face off one last time in next week's finals.
