The Jonas Brothers were visibly shaken by the death of one of their fans over the weekend in Argentina.

On Saturday, 15-year-old Sofia Koch was heading to Cordoba to attend what would have been her first concert. Sofia, sadly, did not make it to the Jonas Brothers, as she was killed in a car accident.

The brothers somehow heard about their fan’s death, however, and that night dedicated their song “Hello Beautiful” to her, with Joe saying, “We are so happy to be here and we wish one more person could be with us tonight. A young girl named Sofia passed away last night. This ones for you Sofia, we love you.’

By the end of the song the crowd was chanting Sofia’s name.

Joe also took to Twitter, saying, “My heart is breaking today for the loss of one of our fans here in Cordoba. We are thinking and praying for her family. #RIPSofiaKoch.”

The brothers are currently on tour in Latin America and are said to be working on a new album.