Panic! At The Disco will "be no more", the band's frontman Brendon Urie has announced.
The US musician also announced that and his wife Sarah Orzechowski were expecting their first baby together and thanked fans for their "immense support" over the years.
It comes as Urie prepares to embark on a final European tour, which is due to finish in Manchester in March.
Announcing the news in a lengthy post on Instagram, he said he was looking forward to "this next adventure".
"Well, it’s been a hell of a journey… Growing up in Vegas I could’ve never imagined where this life would take me. So many places all over the world, and all the friends we’ve made along the way," he wrote.
"But sometimes a journey must end for a new one to begin. We’ve been trying to keep it to ourselves, though some of you may have heard. Sarah and I are expecting a baby very soon!
"The prospect of being a father and getting to watch my wife become a mother is both humbling and exciting. I look forward to this next adventure."
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He continued: "That said, I am going to bring this chapter of my life to an end and put my focus and energy on my family, and with that Panic! At The Disco will be no more.
"Thank you all for your immense support over the years. I’ve sat here trying to come up with the perfect way to say this and I truly can’t put into words how much it has meant to us.
"Whether you’ve been here since the beginning or are just finding us, it has been a pleasure to not only share the stage with so many talented people but also share our time with you.
"I am looking forward to seeing everyone in Europe and the UK for one last run together.
"I love you. I appreciate you. Thank you for existing. Brendon."
Panic! At The Disco was originally formed in 2004 by high-school friends Urie, Ryan Ross, Spencer Smith, and Brent Wilson - though Urie would ultimately lead it as a solo venture.
As a group, the band has released four studio albums, and Urie went on to release three more alone, with the most recent, Viva Las Vengeance, dropping in 2022.
Source: Press Association