Frankie Grande took to social media to pay tribute to the victims of the Manchester Arena terror attack six days after a suicide bomber detonated an explosive device at his sister Ariana's concert.
The former Celebrity Big Brother star, 34, urged his 1.15m Twitter followers to spread love rather than hate in a series of tweets on Twitter.
Writing on the social media site, he said: "My prayers, thoughts, meditations and strength has been focused on those families and victims affected by the horrific tragedy in Manchester.
"I echo my sister's sentiment and say we can't allow hate to propagate hate and fear to propagate fear… but rather come together and spread a message of love, unity and empowerment.
"And so I say, as I have before, shine bright and when evil comes to drown our your light, 3throw shade over your beautiful soul, shine bright (sic)."
He followed it up by a sharing a link to a JustGiving page set up to help victims, writing alongside it: "I love you all so very much and thank you for your strength during this incredibly difficult time," followed by a red heart emoji.
His words came after reports that former Nickeloden star Ariana, 23, is set to return to Manchester next month to play a fundraising concert for those affected by the atrocity which saw 22 killed and 120 injured.
The Side To Side hit-maker is said to be working with her manager Scooter Braun to gather a host of chart-topping names for the gig.
An insider told TMZ that events promoter Live Nation will organise the show, with all proceeds going to the victims and their families.
Ariana described herself as "broken" in an online post shortly after the incident in the North West of England.
Deciding to suspend her Dangerous Woman World Tour, the former Sam & Cat actress flew back to her home in Florida on a private jet less than 24 hours later.
She has since praised the "incredibly brave" city of Manchester in a lengthy statement in which it was first revealed that she intended to return.