Nirvana, e.g. is a four-letter word that can be found in crosswords and is the answer to the clue 'TRIO'. The term Nirvana, e.g. refers to the American rock band of the same name, which was formed in 1987 in Aberdeen, Washington. The band was composed of singer and guitarist Kurt Cobain, bassist Krist Novoselic, and drummer Dave Grohl. Nirvana was one of the most successful and influential bands of the 1990s, and their music helped to popularize the alternative rock genre.