Mariah Carey tweeted a “fun fact” from her upcoming memoir, The Meaning of Mariah Carey, revealing there was a time when she experimented with another musical genre.

“Fun fact: I did an alternative album while I was making Daydream, she wrote. “Just for laughs, but it got me through some dark days.”

Mariah then posted an excerpt from the book, where she talks about working on the album with the band Chick.

“I wanted to break free, let loose, and express my misery – but I also wanted to laugh. I totally looked forward to doing my alter-ego band sessions after Daydream each night.”

Along with the excerpt, Mariah includes a snippet of one of the ‘90s alt rock tunes featuring her background vocals.

“I would fully commit to my character,” she writes of the alt-rock recording sessions. “I was playing with the style of the breezy-grunge, punk-light white female singers who were popular at the time.”

The Meaning of Mariah Carey is out now.