British police have verified that Ariana Grande's charity concert tonight in Manchester will proceed, but they advise attendees to observe extra precautions. 

The police say that heavy security will be implemented at the concert, with armed and unarmed police officers coming from across the nation.

Greater Manchester police require concertgoers to commute by public transport and not to carry bags.

Ariana Grande posted a simple, heartfelt tweet before the scheduled benefit concert: "Praying for London."

One Love Manchester was schedule to proceed despite the terror attacks that occurred at London Bridge and Borough Market.

The concert was organized as a tribute to the victims and families affected by the May 22 suicide bombing at Grande's Manchester Arena concert, which left 22 dead and 116 injured.

Justin Bieber, Coldplay, Katy Perry, Miley Cyrus, Pharrell Williams, Take That, Niall Horan, Little Mix, Robbie Williams and Black Eyed Peas are included in the performers' list.

Grande made a surprise visit to Royal Manchester Children's Hospital on Friday night.She visited the victims and gave them teddy bears and sunflowers.The 23-year-old artist led in organizing the concert.Tickets sold out six minutes after they went on sale Thursday.Some 50,000 music lovers are predicted to attend the concert. 

Police officers, sniffer dogs, and tight security were all present at the grounds venue prior to the concert.

Portugal barista Marco Santos, 20, travelled from Lisbon, even though he didn't secure a ticket to the show.He stated that he just felt that he needed to be there and show his support to Grande and the other performers.

Concert proceeds will go to the We Love Manchester Emergency Fund, formed by the Manchester City Council in partnership with the British Red Cross, to support all the mourning victims and families. 

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