The singer performed "One Last Time" during her set at Manchester Arena on May 22, the location of the terror attack that took the lives of nearly two dozen people and injured many more.
Grande shared an image of her visit to Royal Manchester Children's Hospital with her 107 million Instagram followers.
Thorpe has an eight-year-old daughter, Lily, who suffered a shrapnel wound in her back and is now undergoing treatment and is getting better.
Ariana Grande performs onstage at the 2016 iHeartRadio Music Festival at T-Mobile Arena on September 24, 2016 in Las Vegas, Nevada. "She'd met Prince William earlier and then Ariana walked in". "She knelt by her and sat on her bed with her and told her "I'm so proud of you, you are so strong and doing really well". "And they've kept in touch, they've been to see her in the hospital".
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And yesterday, no doubt in response to Merkel's comments, Trump was once again tweeting up a storm now that he's back on US soil. Trump in remarks on Sunday in which she urged the European Union to stick together in the face of weakening US support.
Speaking about meeting the star Mills said: 'It was so good. She was just there, she was brilliant.
"She's now ready to go for tomorrow's concert", he added. "We are canceling tickets of those who are reselling wherever possible", the account tweeted.
"So just seeing them smile and having 20 minutes, half an hour of pure happiness is unbelievable".
The pair, who were due to be picked up by Millie's dad, ran back through the main concourse and hid in a doorway as they fled the carnage.