American singer Ariana Grande visited some victims of the Manchester Arena attack in hospital on Saturday (June 3), ahead of her benefit concert on Sunday.
Peter Mann, whose daughter Jaden was injured in the attack, posted pictures of the encounter on Facebook.
He said it meant a lot to her and to his family.
Grande also visited eight-year-old Lily Harrison, who had a shrapnel wound from the attack.
The 23-year-old pop star had arrived in London on Friday, ahead of her One Love Manchester concert, which will raise money for families of victims.
The concert has a star-studded line up including Katy Perry, Miley Cyrus and Justin Bieber.
Dozens were injured and 22 killed at the starlet's concert in Manchester on May 22.
She posted a message on Twitter, saying she was broken from the bottom of her heart.
In a letter posted on May 27, Grande said the victims "will be on my mind and in my heart every day and I will think of them with everything I do for the rest of my life".