Ariana Grande 'Still Absolutely Crushed' Following Manchester Arena Attack

Ariana Grande is focusing on how to help the victims of the deadly attack.

Ariana Grande is "still absolutely crushed," by the bombing that followed her sold-out concert at the Manchester Arena earlier this week and she has "barely slept," according to a report.

"Her focus is on the victims and how she can help," a source told People magazine. "This isn't about her —this is about the victims."

Read: From the Ariana Grande Superfan to a Hero Aunt, More Details Emerge About Manchester Victims

Music artists have shown support for Grande and the victims of the horrifying incident that claimed 22 lives and injured 59. 

Billy Joel performed The Beatles song "A Day in the Life" at his Madison Square Garden concert Thursday night as a tribute to the victims of the bombing. Cameras at the show captured one concertgoer waving a British flag. 

On Tuesday, Miley Cyrus dedicated a song to Ariana Grande during the finale of The Voice

"I'd like to dedicate this song to my good friend Ariana Grande and everyone who experienced that horrific attack yesterday," Cyrus said before the performance. "Our hearts are with you." 

Read: Television Personalities' Emotional Reactions to Manchester Terror Bombing

Grande arrived stateside for the first time since the attack on Tuesday. She was seen in tears as she met her boyfriend, Mac Miller, after exiting a private plane she took with her mother, Joan Grande, in her hometown of Boca Raton, Fla. 

Grande has put her "Dangerous Woman" worldwide concert tour on hold until June 7, according to multiple reports. The canceled tour dates are: 

May 25: London, England, O2 Arena
May 26: London, England, O2 Arena
May 28: Antwerp, Belgium, Sportpalais
May 31: Lodz, Poland, Atlas Arena
June 1: Lodz, Poland, Atlas Arena
June 3: Frankfurt, Germany, Festhalle
June 5: Zurich, Switzerland, Hallenstadion

Her reps were unsure how long she will be "under the radar," but said "it seems like it could be a while," People reported.

Following the attack, Grande tweeted, "broken. from the bottom of my heart, i am so so sorry. i don't have words."

Watch: Videos Show Chaos at Ariana Grande Concert Moments After Bombing