Over the weekend Ariana Grande announced via a tweet that she would hold a benefit concert in Manchester, after her concert last week was targeted by a suicide bomber. Valerie Macon / AFP / Getty Images "This is in honour of and to raise money for the victims and their families," she said. Today she announced a date for the concert, with tickets going on sale Thursday. Ariana Grande @ArianaGrande 03:30 PM - 30 May 2017 Reply Retweet Favorite Anyone who attended the original concert will recieve free entry. TMZ are reporting that the lineup will include Miley Cyrus, Justin Bieber, Pharrell Williams, Katy Perry, Usher, Niall Horan, and Coldplay. Mike Coppola Justin Bieber confirmed his attendance on Twitter. Justin Bieber @justinbieber See you Sunday 10:49 PM - 30 May 2017 Reply Retweet Favorite ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF youtube.com ^True.