From left: Demi Lovato, Samantha Megan Deitsch, Eden Hebron, Maia Hebron, Mackenzie Marie Chapman, Julius Castillo and Sarah Stricker onstage at the opening concert of Lovato's "Tell Me You Love Me" tour at the Viejas Arena at Aztec Bowl, San Diego State University, on Monday, Feb. 26, 2018 in San Diego.

Several of the students who survived this month's Florida school shooting were brought onstage during a concert by popular singer Demi Lovato two days before the students returned to classes. The "Let It...

Photo Credit: Kevin Mazur/Getty Images for Philymack