Electro-pop is a genre that combines electronic music and pop music, featuring synthesizers as the dominant instrument. Electro-pop songs have catchy melodies and simple dance beats rather than being focused solely on danceability. The genre became popular in the 1980s with artists like Erasure and Pet Shop Boys adopting the synthpop sound, though it declined by the late 1980s. Interest revived in the 1990s indie electronic and electroclash movements and electro-pop has become more mainstream with 21st century artists like La Roux, Lady Gaga, and Owl City.