The two musicians who supported Ariana Grande at her Manchester Arena concert say they are “heartbroken” by the attack.
Twenty-two people died and 59 were injured in a suicide bombing on Monday evening.
Victoria Monet has tweeted to say she is “heartbroken that loved ones who came to have the night of their lives ended up losing them”.
Ariane Grande has also tweeted about the attack.
Bia, whose real name is Bianca Landrau, is a Boston-based rapper who performed at some of Ariana’s US dates, as well as the planned UK dates.
She’s worked with musicians such as Pharrell, Jennifer Hudson and Usher.
Victoria Monet has previously toured with Fifth Harmony and along with writing for Ariana, has also penned tracks for Chris Brown, Nas and Kendrick Lamar.
Ariana Grande and her manager Scooter Braun have tweeted about the attack.
Some of the victims have now been named by authorities.
Eight-year-old Saffie Rose Roussos was a pupil at Tarleton Primary School, in Lancashire.
Her head teacher, Chris Upton, said she had been “simply a beautiful little girl in every aspect of the word” and was “loved by everyone”.
Student Georgina Callander, believed to have been 18, has also been named as among the dead.
Photographs on social media show her having previously met Ariana Grande and friends say she was a big fan of the singer.