Carey, 42, is one of the big names that has surfaced since Steven Tyler's confirmation that he will not return to the American Idol judges' table and amid buzz that Jennifer Lopez is likely following in his footsteps.
"I don't know if they can afford Mariah Carey. That's a lot of money. If they gave JLo USD 20 million, they might have to double that!... You never know, it's one of things, she's got an album coming out so there's promotional stuff...," he said.
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Photos: Shah Rukh Khan, Deepika Padukone, Alia Bhatt at an awards show
Photos: Big B, Iulia Vantur at Himesh Reshammiya's album launch
Photos: Aamir Khan with 'Dangal' actresses at fashion show
Spotted: Twinkle Khanna, Shriya Saran at an event in Mumbai