Manchester Arena terror attack, which occurred as Ariana Grande finished her show killing 22 and injuring over 60 people, has left many shaken up in the music world. Some artists are cancelling their U.K. gigs while others plan to go ahead, but with more security. Blasting News reported that Justin Bieber fans had begged the singer to cancel his upcoming concerts in the U.K., but the pop star's manager had said security would be tightened and his tour would go ahead.

Some musicians postpone concerts out of respect to victims of terror attack

According to a report by the Independent, other musicians are contemplating whether to continue with their planned performances in the U.K.

Blondie was scheduled to appear at the Round Chapel in London Tuesday night, but canceled out of respect for the victims of the Manchester Arena attack. Debbie Harry, the band’s lead singer tweeted that the concert date would be rescheduled.

Take That, a Manchester-based band, also postponed their concert Tuesday night in Liverpool, along with concerts scheduled for Manchester from May 25 to 27, also out of respect to the victims of the Terror Attack.

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The band tweeted that their thoughts and prayers were with the victims and their families.

The band has since announced the rescheduling of their show at Liverpool Arena for May 26 via Twitter.

Other musicians will continue as normal, but with more security

However many summer gigs planned for Europe will go ahead as planned. Iron Maiden will be performing as scheduled in Cardiff Wednesday and will also play in London on May 27 and 28. Phil Collins’ manager said his concerts, set to play on June 2 at Liverpool’s Echo Arena, followed by five shows at the Royal Albert Hall in London, will proceed as normal.

According to Celine Dion’s publicist, her scheduled concerts in Copenhagen, London, Paris and Stockholm will go on as normal, including a show on June 25 at the Manchester Arena. Guns N’ Roses will continue their current tour, with shows to be held in Dublin, Lisbon, London, Madrid, Munich, Paris and Zurich as planned.

Ariana Grande may continue her tour?

While the media is currently reporting that Grande had canceled her European tour, the New York Daily News reports that someone close to the singer, who spoke anonymously, said the tour has not been canceled, although it is unclear whether the singer’s planned show in London on Thursday would go ahead. For the concerts that are still scheduled to run, there will likely be heightened security measures. London’s O2 arena made a recent statement to say they were shocked and saddened by the terror attack at the Manchester Arena, adding that their security precautions are currently being stepped up. The statement suggested that concertgoers should arrive early and that they would only be allowing small bags into the venue.