LOS ANGELES: Lady Gaga’s former assistant is reportedly writing a tell-all book about her one-time boss. Fame Monster is said to revisit Jennifer O’Neill’s two years traveling the world with Gaga, The Guardian reported.

Atria Books, an imprint of Simon & Schuster, have told the Hollywood Reporter and New York Post that O’Neill has inked a contract with them. It’s a deal worth “up to $1 million,” according to the Post, though they have yet to announce a publication date.

O’Neill’s history with Gaga first came to light in 2011, when she sued the singer for hundreds of thousands of dollars in overtime pay. Between 2009 and 2011, O’Neill claimed, she was expected “to be working and available 24/7” — handling Gaga’s luggage, administering her “medicine” and waking her up.

Gaga was not pleased with O’Neill’s allegations. “This whole case is bullshit and you know it,” she said during a recorded deposition.

“Jennifer thinks she’s just like the queen of the universe ... but in my work and what I do, I’m the queen of the universe every day ... She knew there was no overtime,” she said.

In 2013, Gaga and O’Neill settled the lawsuit out of court. Terms were never revealed, although O’Neill’s tell-all deal suggests that they did not include a non-disclosure agreement. Gaga and her representatives have yet to respond to the book announcement.