The former X Factor judge is preparing to release her third studio album later this year, with first single Call My Name set for release later this month.
“I can’t give too much away but Cheryl’s album is going to be big," Will said this weekend.
And he claimed: “Like Michael Jackson she is a complete perfectionist.
“Unless she is 100% happy with something she just won’t put it out there."
The Girls Aloud singer has been tipped to make an appearance on The Voice UK live shows next month, but Will remained coy over those rumours.
He instead insisted that Cheryl had the talent and likeability to make it.
“She has got some of the biggest artists and producers in the industry to work with her, not just because she is talented but because everybody who meets her loves her," he told the Daily Star Sunday
“She is one of the most likable people in the industry and to be genuine is as important as talent," the Black Eyed Peas star added.