“Būsim kopā arvien!” - Opus Pro 40 gadu jubilejas koncerttūre is a rock music concert in Valmiera at Valmieras Kultūras centrs on 12 February 2027. Over four decades, OPUS PRO have created songs that became classics of Latvian rock music and continue to bring different generations together. The anniversary programme is a musical journey through the band’s history, from legendary hits to newer compositions. Current and former band members, as well as special guests, will appear on stage. The line-up and surprises may vary from one concert to another.