Ariana Grande’s mom, Joan, helped fans to safety by escorting them backstage as soon as a bomb went off at Manchester Arena on Monday night.

A source close to the 23-year-old singer tells ET that Joan wanted to make sure the concertgoers were out of harm’s way, so she ushered them backstage with her amid the chaos.

WATCH: Ariana Grande Says She’s ‘Broken’ After 22 Die in Post-Concert Attack

TMZ first reported the news, adding that Joan was still sitting in her front row seat and about to go and see her daughter backstage when the incident occurred, shortly after the show ended.

Police have confirmed that 22 people were killed and 59 injured in the suicide bombing. They have also confirmed that a 23-year-old man was arrested in South Manchester in relation to the incident.

Grande has since suspended her world tour and left the U.K. for Florida to spend time with her family. She arrived on Tuesday and was greeted at the airport by her boyfriend, Mac Miller.

NEWS: Ariana Grande Comforted by Mac Miller as She Lands in U.S. After Manchester Concert Bombing

“She’s distraught,” an insider tells ET.

See what the singer posted on Twitter following the attack below.