The earlier, somewhat controversial crossover success enjoyed by popular gangsta rap songs like "Gin and Juice" gave way to gangsta rap's becoming a widely accepted staple on the pop charts in the late 1990s. For example, between the release of The Notorious B.I.G.'s debut album "Ready to Die" in 1994 and his follow-up, the posthumous "Life After Death" in 1997, his sound changed from a darker, tense production, with lyrics projecting desperation and paranoia, to a cleaner, more laid-back sound, fashioned for popular consumption (though the references to guns, drug dealing and life as a thug on the street remained).