Opus Pro 40! is a special anniversary concert by the legendary Latvian rock band, taking place at the Fontaine Palace music club, indoor terrace "Acropolis" in Liepāja on September 25, 2026. Opus Pro are known for their energetic shows at this venue, promising an electrifying atmosphere. This event celebrates 40 years of Opus Pro on stage, featuring hits that have become part of Latvian rock music history. Rock fans can expect a festive evening filled with iconic songs and the unforgettable spirit of rock ‘n’ roll. The concert is held on a single evening date.