updated 10/14/2011 AT 9:05 AM ET
•originally published 10/14/2011 AT 9:25 AM ET
Will she take a rain check?
But Carey’s flight was grounded when Hurricane Irene marched up the Atlantic Seaboard in August.
“The good news is I have chosen myself to be my head mentor,” Cowell told his disappointed charges. “It’s like having me twice.”
Meanwhile, the boys faced L.A. Reid and his mentor Rihanna in the Hamptons; the contestants over 30 traveled to Malibu, Calif., to perform for Nicole Scherzinger and Enrique Iglesias; and the groups joined Paula Abdul and Pharrell Williams at her home in Santa Barbara, Calif.