Led Zeppelin were an English rock band formed in 1968 by Jimmy Page (guitar), Robert Plant (vocals), John Paul Jones (bass guitar, keyboards, mandolin) and John Bonham (drums). With their heavy, guitar-driven sound, Led Zeppelin are regarded as one of the first heavy metal bands, helping to pioneer the genre. However, the band's individualistic style drew from many sources and transcends any one genre. Their rock-infused interpretation of the blues and folk genres also incorporated rockabilly, reggae, soul, funk, classical, Celtic, Indian, Arabic, pop, Latin and country. The band did not release the popular songs from their albums as singles in the UK, as they preferred to develop the concept of "album-oriented rock". They charted ten singles in the US.