"Christina Grimmie shot these videos back in February with about six hours of choreography and four days of filming before she left for the WildFire tour. Everyone worked so hard on this project putting in extra long days on set," read a statement
"Orlando you were incredible last night. Thank you @andradaymusic for helping DEMI and I are honor the victims of the terrible acts of violence recently," wrote Nick Jonas on Instagram
"I found out this morning that Adam Levine personally called my mother and said he will pay for her funeral and her plane flight, and I was blown away," Marcus Grimmie wrote on Facebook.
Armed with two handguns, ammunition and a hunting knife, the suspect, identified as Kevin James Loibl, shot and fatally wounded the 22-year-old at the city's Plaza Live Theater on late Friday during a meet and greet with fans