Singer-actress has struggled with drug addiction and personal troubles

New York: Demi Lovato’s next stage will be on the page.
The singer-actress has agreed to a multi-book deal with Feiwel (FYE’-well) and Friends. The publisher, an imprint of Macmillan, announced the deal on Monday.
The first book features tweets she had written about her life. It’s called Staying Strong: 365 Days a Year and comes out in November.
Lovato also plans a memoir. The 21-year-old superstar has openly struggled with drug addiction and other personal troubles, some of which she has described on Twitter.