Three Dog Night is an American rock band best known for their music from 1968 to 1975. This highly successful vocal-centric rock band formed in 1968 with a lineup consisting of Danny Hutton, Cory Wells and Chuck Negron. The three lead singers were backed by Jimmy Greenspoon (organ), Joe Schermie (bass), Mike Allsup (guitar) and Floyd Sneed (drums). With their distinctive and sometimes extraordinary harmonic blend, the band registered an impressive 21 Billboard Top 40 hits (with three hitting number one) between 1969 and 1975. Their startling version of John Lennon and Paul McCartney’s ‘'It’s For You’' typified the band at their best, but it was their original arrangements of the work of lesser-known writers that brought welcome exposure and considerable royalties to fresh talent. As of 2012, they are still recording and making live appearances.