Complex sentence: Shulgin's career began at the age of 19 in Russian rock band The Cruise; the band is regarded as legendary for being the first rock-band of the USSR to tour abroad (1983--1986).
Split into simpler sentences: Shulgin's career began at the age of 19 in Russian rock band The Cruise. The band is regarded as legendary for being the first rock band from the USSR to tour abroad (1983--1986).