It could have been any of their concerts. Any of their fans.
As news spread of the devastating events of Sunday's Manchester Arena attack at an Ariana Grande concert, people around the world were in shock. At least 22 people were reported dead and dozens injured after an explosion and apparent suicide bombing at the stadium.
Children were among the reported victims, as singer Ariana Grande is hugely popular with young girls. The severity of the situation was not lost on Canadian musicians, many of whom have similar fan bases and know and have worked with Grande.
They took to social media, where so many young people were congregating to mourn the tragedy, in short order.
Drake, fresh from the Billboard Music Awards, posted support on Instagram, using an image Grande fans have generated of her iconic "bunny ears" combined with a black ribbon:
"We just left from touring in Europe and this was such a real fear we discussed frequently," he wrote in his post. "I was crushed today to hear it became a reality. My condolences to all of the families affected and we will be praying for all of Manchester. Also I am praying on peace of mind for Ariana."
Justin Bieber, who once shared a management team with Grande, tweeted a brief "#PrayForManchester", one of the hashtags to emerge from the tragedy.
Shawn Mendes called the attack "unthinkable" and sent love to his fans:
"Peter Pan" singer and Edmonton native Ruth B. had just finished a show when she heard the news:
Francesco Yates, who has sung with Mendes and roused the crowds at the Pan Am Games was distraught:
And YouTube superstar comedian Lilly Singh, a.k.a. Superwoman sent prayers and love, and shut down a tweeter who tried to hate on Grande at a tragic moment:
Her fans, team Super, also sent love to Grande's fans, the Arianators:
More coverage of the Manchester terrorist attack