Lovato launched their skincare cosmetics, Devonne by Demi, in November 2014. The second book will be a memoir released at a later date. Glee co-star and friend, Lea Michele, has a quote in the book (day September 17). The first book, Staying Strong: 365 Days a Year, is about daily inspirational quotes inspired by Lovato's tweets. Lovato signed a two-book deal with publisher Macmilla, which was announced in September 2013. They were announced in June 2015 to have joined the cast of Get Smurfy, the upcoming fully animated Smurf reboot, as Smurfette. The X Factor was cancelled, less than two months after Demi quit, in February 2014 after three seasons. In December 2013, it was reported that Demi would not be returning for the fourth season of The X Factor, which Simon Cowell confirmed. It was confirmed by Glee, through Twitter, on August 22, 2013. It was announced that they would be returning to acting in late 2013, and was revealed to be joining the cast of Glee as Dani starting from the shows fifth season. With returning to The X Factor for another season alongside new judges Kelly Rowland and Paulina Rubio, their salary doubled from that of their first season. They began appearing as a judge on The X Factor in 2012, which was the shows second season, and was the only judge to return to the show for its third season, along with Simon Cowell. Demi did take their time away from television to get back to the studio to begin working on their third studio album.
After this movie, and along with their personal struggles, Demi left their TV show Sonny with a Chance, effectively ending the series, although it did return as a spin-off, no longer featuring Lovato.
And the movie premiered with 8 Million viewers, becoming the number one cable television movie of the year. With the success of the first movie, Demi then reprised their role of Mitchie Torres in Camp Rock 2: The Final Jam in September 2011. Between these roles, Demi also had the opportunity to record and release their first and second album. And although their acting was thought to be underwhelming in Camp Rock, their singing was genuinely praised. Lovato, one the same day in the summer of 2007 auditioned for parts in Sonny with a Chance and Camp Rock and ended up getting both parts, both of them being the lead roles. They appeared on Prison Break, and they were on Just Jordan in 2006 and they played the role of Charlotte Adams on As the Bell Rings between 20.
They began playing piano at the age of seven and guitar at the age of ten, at which time they also enrolled in dancing and acting classes, and also began learning to play piano and guitar. Lovato, and alongside eventual friend Selena Gomez, began their acting career on Barney & Friends portraying Angela at the age of 7. In May 2021, they came out as non-binary on Twitter. Lovato describes their sexuality as fluid and in July 2020, they identify as queer. However, the relationship would end in September. They had been in a relationship with Max Ehrich since March 2020 and the couple became engaged in July.
Lovato has been in an "on and off" relationship with actor Wilmer Valderrama since 2010, but they announced their ultimate break-up through Instagram on June 3, 2016. They entered a treatment facility to confront "physical and emotional issues" and would later acknowledged having suffered from bulimia, self-injury, and "self-medicating" with drugs and alcohol, which they stated was "like a lot of teens do to numb their pain." Lovato added that they had "basically had a nervous breakdown" and were diagnosed with bipolar disorder during the treatment, also noting that they had gained weight during the process.
Lovato had suffered from eating disorders and self-mutilation to cope with their emotions and depression. They later became a spokesperson for anti-bullying organization PACER and appeared on America's Next Top Model to speak out against bullying. Lovato earned a high school diploma through homeschooling in April 2009, they were bullied so severely that they requested a home-schooled education. Lovato was born in Albuquerque, New Mexico (and raised in Dallas, Texas) to Dianna De La Garza and Patrick Lovato, who died in June 2013. They have three siblings, Dallas, Madison De La Garza (half), and