The Pixies were associated with the 1990s alternative rock boom, and draw on elements including punk rock and surf rock. Their music is known for its dynamic “loud-quiet” shifts and song structures. Francis is the Pixies’ primary songwriter; his often surreal lyrics cover offbeat subjects such as extraterrestrials, incest, and biblical violence. They achieved modest popularity in their home country, but were more successful in the United Kingdom and mainland Europe. Their jarring pop sound influenced bands such as Nirvana, Radiohead, Bush, Blur and Weezer. Their popularity grew in the years following their break-up, leading to sold-out world tours following their reunion in 2004.