Some of the biggest music gathered in London this weekend for the 2019 Wireless Festival. The three-day event boasted a lineup that included everyone from Cardi B and Migos to Tory Lanez and Young Thug to Future and Juice WRLD; however, there's one major artist who will likely miss his scheduled set: ASAP Rocky.

The Harlem rapper, who was supposed to performance Wireless this Sunday, is currently detained in Sweden on assault charges. Rocky and three others were arrested by Swedish authorities on Tuesday night in connection to an altercation that occurred in Stockholm. It's reported that Rocky will remain behind bars for at least two weeks while police investigate the incident.

In the days since his arrest, Rocky has received a wave of support from fans and fellow artists. On Saturday, Travis Scott joined the call for Rocky's freedom while on stage at the Wireless Festival.

The shoutout was particularly noteworthy considering the rappers', uh, interesting history. Though they've never had beef, Rocky and Scott have been mistaken for one another on several occasions, resulting in mild awkwardness. In 2015, Scott confronted a man who referred to him as "ASAP Rocky."

In a 2018 interview on Complex's Open Late with Peter Rosenberg, Rocky was asked about the "alleged weirdness" between him and the ASTROWORLD rapper. The ASAP Mob leader insisted there was no bad blood.

"I don't even know why we're talking about Travis Scott right now, no shade," Rocky said. "Call it what you will. Ask Flex. I think Travis Scott, you know, he makes cool music. He had a baby, I'm happy for that, it's beautiful. Honestly, like, I'm handsome. I'm single."