After incorporation into the Soviet Union, Latvian artists and writers were forced to follow the socialist realism style of art. During the Soviet era, music became increasingly popular, with the most popular being songs from the 1980s. At this time, songs often made fun of the characteristics of Soviet life and were concerned about preserving Latvian identity. This aroused popular protests against the USSR and also gave rise to an increasing popularity of poetry. Since independence, theatre, scenography, choir music, and classical music have become the most notable branches of Latvian culture.