Ariana Grande will lead the "One Love Manchester" concert almost two weeks after her concert in the city was hit by a suicide bombing that killed 22 people and wounded 116. But there are concerns that survivors may miss out on free tickets.

Tickets for an all-star benefit concert in aid of the victims of the Manchester bomb attack sold out within minutes of going on sale on Thursday.
The One Love Manchester concert being held on Sunday (June 4) will be headlined by Ariana Grande, the US singer whose concert in the northern English city on May 22 was hit by a suicide bombing that killed 22 people and wounded 116.
One Love Manchester June 4th https://t.co/nppsvzhxvC pic.twitter.com/jGlisp22HO
— Ariana Grande (@ArianaGrande) June 1, 2017
Coldplay, Justin Bieber, Miley Cyrus, Pharrell Williams, Take That and the Black Eyed Peas will also perform at the concert at the Emirates Old Trafford Cricket Ground.
One world, one love. Honored to join Ariana Grande in honoring the victims and their families in Manchester. Tix: ticketmaster.co.uk/arianagrandemanchester
Posted by Black Eyed Peas on Tuesday, May 30, 2017
Don't know how anyone managed to get tickets for One Love Manchester that was the most impossible thing I've ever done
— mel (@melissachloe_) June 1, 2017
How have people got these one love Manchester tickets. I've just been staring at a virtual queue screen for half an hour for it to say error
— JodieClarke (@Jodieeclarkee) June 1, 2017
Fans who attended Grande's previous show are being offered free tickets to the concert which will be broadcast on British television.
Proceeds from tickets sold will go to the We Love Manchester Emergency Fund set up to aid grieving families and victims of the attack.
Touts reselling tickets called "shameless"
Many say the tickets were being resold at exorbitant rates in black.
People who are reselling the One Love Manchester tickets for a profit are disgusting people no shame whatsoever
— Georgia E Bayliss (@georgiaebayliss) June 1, 2017
People selling One Love Manchester tickets for 400 are vile
— Ryan Mather (@Ryan_Mather) June 1, 2017
#OneLoveManchester We're working hard to get tickets direct to fans. We are cancelling tickets of those who are reselling wherever possible
— Ticketmaster UK (@TicketmasterUK) June 1, 2017
In a statement announcing the benefit concert, Grande said she hoped to "honour the ones we lost, their loved ones, my fans and all affected by this tragedy".