Mariah Carey’s ex Tommy Mottola to pen memoir

Tommy Mottola, who is largely known for discovering stars like Shakira, Beyonce, and Mariah Carey – who also became his wife in a short-lived marriage, is set to write his memoir, detailing his rise to success and stories while he reigned at the top as the head of Sony Music.

Mottola has signed a deal to write “The Last Starmaker,” to be published by Grand Central Publishing, a division of Hachette Book Group USA, in early 2012.

“It”s time to tell his story,” the New York Post quoted a friend of Mottola as saying.

“The music industry is virtually over. Cream will always rise to the top. But the days of starmaking are over. Kids today only want one song, not the album, and they don”t know who the artist is,” the pal added.

Mottola will tell how Walter Yetnikoff brought him into CBS Records, and then turned on him after Yetnikoff self-destructed and lost his job.

Since Yetnikoff trashed Mottola in his 2004 memoir, “Howling at the Moon,” Mottola is expected to wreak some payback.

“The Last Starmaker” will also debunk the myth that Mottola was a jealous svengali over Carey.

According to a source, the book will explain that Carey, who was quite young at the time, came from a “confusing upbringing.