Demi Lovato takes part in the Arthur Ashe Kids Day at the USTA Billie Jean King National Tennis Center in New York on August 23, 2008. (UPI Photo/Laura Cavanaugh)
American singer/actress Demi Lovato attends the European premiere of "Camp Rock" at Royal Festival Hall in London on September 10, 2008. (UPI Photo/Rune Hellestad)
Premiere of "Jonas Brothers: The 3D Concert Experiece" held in Los Angeles
Joe Jonas (L-R),Demi Lovato, Nick Jonas and Kevin Jonas attend the premiere of the film "Jonas Brothers: The 3D Concert Experiece" in Los Angeles on February 24, 2009. (UPI Photo/ Phil McCarten)
Demi Lovato garners award at the 38th annual People's Choice Awards in Los Angeles
Singer Demi Lovato appears backstage with the favorite pop artist award she garnered during the 38th annual People's Choice Awards at the Nokia Theatre in Los Angeles on January 11, 2012. UPI/Jim Ruymen
Demi Lovato on the Good Morning America Show in New York
Demi Lovato performs on the Good Morning America Show at the Rumsey Playfield/SummerStage in Central Park in New York City on July 6, 2012. UPI/John Angelillo
Singer Demi Lovato, who performs "Let It Go" in the film attends the premiere of the animated motion picture musical comedy "Frozen" at the El Capitan Theatre in the Hollywood section of Los Angeles on November 19, 2013. Storyline: Fearless optimist Anna teams up with Kristoff in an epic journey, encountering Everest-like conditions, and a hilarious snowman named Olaf in a race to find Anna's sister Elsa, whose icy powers have trapped the kingdom in eternal winter. UPI/Jim Ruymen
Demi Lovato sings the National Anthem at the World Series
Demi Lovato sings the National Anthem before the New York Mets play the Kansas City Royals in game 4 of the World Series at Citi Field in New York City on October 31, 2015. Photo by John Angelillo/UPI
Demi Lovato attends the 43rd annual American Music Awards in Los Angeles
Recording artist Demi Lovato arrives for the 43rd annual American Music Awards held at Microsoft Theater in Los Angeles on November 22, 2015. Photo by Jim Ruymen/UPI
Hillary Clinton attends campaign event with singer Demi Lovato in Iowa City, Iowa
Former secretary of state and Senator Hillary Clinton, 2016 Democratic presidential candidate, (R), moves to embrace singer Demi Lovato as she arrives onstage during a campaign event at University of Iowa, January 21, 2016, in Iowa City, Iowa. Clinton is running against former Maryland Gov. Martin O'Malley and Vermont Sen. Bernie Sanders ahead of Iowa's first-in-the-nation caucuses February 1. Photo by Mike Theiler/UPI
First Lady Michelle Obama Welcomes Musicians to White House
First Lady Michelle Obama makes opening remarks during a student workshop honoring the music of Ray Charles in the State Dining Room of the White House on February 24, 2016. Performing artists Andra Day, Demi Lovato, and Jussie Smollett applaud in the background. Students from across the country participated in the event that is part of the "In Performance at the White House" series. Photo by Pat Benic/UPI
Nick Jonas and Demi Lovato attend the 27th annual GLAAD Media Awards in Beverly Hills
Recording artist Nick Jonas (L) and honoree Demi Lovato attend the 27th annual GLAAD Media Awards at the Beverly Hilton Hotel in Beverly Hills, California on April 2, 2016. Photo by Jim Ruymen/UPI
Demi Lovato arrives on the red carpet at the Costume Institute Benefit at The Metropolitan Museum of Art celebrating the opening of Manus x Machina: Fashion in an Age of Technology in New York City on May 2, 2016. Photo by John Angelillo/UPI
President Obama welcomes Nordic leaders to State Dinner
Singer Demi Lovato performs for U.S.President Barack Obama and Nordic leaders and their spouses at a State Dinner on the South Lawn of the White House, May 13, 2016, in Washington, DC. The leaders were expected to discuss terrorism, the environment, Arctic issues and trade. Photo by Mike Theiler/UPI
Demi Lovato appears backstage at the iHeartRadio Music Awards in Inglewood, California
Singer and songwriter Demi Lovato appears backstage during the iHeartRadio Music Awards at The Forum in Inglewood, California on March 5, 2017. The show was broadcast live on Turner's TBS, TNT, and truTV . Photo by Jim Ruymen/UPI
Demi Lovato arrives at the TIME 100 Gala in New York
Demi Lovato arrives on the red carpet at the TIME 100 Gala at Frederick P. Rose Hall, Home of Jazz at Lincoln Center, in New York City on April 26, 2017. TIME 100 celebrates TIME Magazine's list of the 100 Most Influential People in the World. Photo by Bryan R. Smith/UPI
Demi Lovato appears onstage at We Day California in Inglewood
Singer Demi Lovato appears onstage during We Day California at The Forum in Inglewood, California on April 27, 2017. WE Charity, formerly known as Free The Children, is a worldwide development charity and youth empowerment movement founded in 1995 by human rights advocates Craig Kielburger and Marc Kielburger. Photo by Jim Ruymen/UPI
Floyd Mayweather vs. Conor McGregor super-welterweight fight in Las Vegas
Demi Lovato sings the national anthem before the Floyd Mayweather Jr. and Conor McGregor super-welterweight fight at T-Mobile Arena in Las Vegas, Nevada on August 26, 2017. Mayweather won by TKO in the 10th round. Photo by James Atoa/UPI
Demi Lovato attends the annual 2017 American Music Awards in Los Angeles
Singer Demi Lovato arrives for the annual American Music Awards held at Microsoft Theater in Los Angeles, on November 19, 2017. Photo by Jim Ruymen/UPI
Demi Lovato performs 'Skyscraper' during the March for Our Lives rally on March 24, 2018 in Washington, D.C. Hundreds of thousands rallied in the nation's capital to demand action to end gun violence and mass shootings in schools. Photo by David Tulis /UPI
Demi Lovato arrives at the 2018 Billboard Music Awards in Las Vegas, Nevada
Recording artist Demi Lovato arrives for the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. Photo by Jim Ruymen/UPI
Demi Lovato sings the national anthem before Super Bowl LIV at the Hard Rock Stadium in Miami Gardens on Sunday, February 2, 2020. Photo by John Angelillo/UPI