\"Rarities\" will also allow fans to hear songs from Carey's \"Live at the Tokyo Dome\" performance, which was her first concert performance in Japan during her 1996 world tour.

The singer also has another exciting project, an upcoming memoir, \"The Meaning of Mariah Carey,\" out Sept. 29. She described the project as \"a labor of love.\"

\"There are a lot of very personal stories about my childhood ... those are difficult but very cathartic as well,\" she said. \"The cool thing about this project is that there are songs that I talk about writing or recording even as a little kid, starting as a little kid, until now that I've found in the vault.\"

\"We're kind of putting this out at the same time, and I don't want to give away too many titles or anything but it's exciting because they're kind of merged together in a really organic way,\" she added about the timing of the book and album releases.

LAMBS REJOICE! We’re talking with the iconic @MariahCarey about her new album #TheRarities coming in October and her new memoir “The Meaning of Mariah Carey” 🦋 #MariahOnGMA pic.twitter.com/XsdbiV7eDT

— Good Morning America (@GMA) August 19, 2020

She said fans will get a look at her upbringing and get to know her like never before in the new memoir.

\"I haven't really ever been able to do an entire book where I felt comfortable to really talk about issues that I went through growing up as a kid and just starting out so young in the industry,\" she shared. \"It's been an interesting journey, and I hope that people will get a better understanding and actually enjoy reading the book and listening to the 'Rarities.'\"

For the Lambs who can't wait for the upcoming album or book release, Carey is also releasing a new song, \"Save The Day,\" on Friday.

She didn't give much away about the song but said there will be a charitable component attached to it.

WATCH: Mariah Carey performs 'Close My Eyes' on 'GMA'

WATCH: Mariah Carey performs ‘Vision of Love’ on ‘GMA’

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