TRONDHEIM, NORWAY – JUNE 11: Nikki Sixx from Mötley Crüe performs on stage at the Trondheim Rocks Festival 2023 on June 11, 2023 in Trondheim, Norway. (Photo by Per Ole Hagen/Redferns)

Motley Crue bassist Nikki Sixx announced on social media that he’s working on a new book.

This will be his 5th. His first four put him on the New York Times best-selling author list.

He didn’t give up any specific details, but a couple of years ago, he said he and his wife Courtney were writing a children’s book about diversity.

Motley Crue is currently on the road with Def Leppard and Alice Cooper for a U.S. mini-tour before they head to Japan and Australia this fall.

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