The Fifth Dimension is an Americann popular music group, best-known during the late 1960s and 1970s for popularizing hits of songwriters like Jimmy Webb, Laura Nyro, Ashford & Simpson, and others, and helping to popularize "flower power" music with both white and black middle-class Americans. Some of their most famous hits include:
"Up, Up, and Away"
"One Less Bell to Answer"
"Wedding Bell Blues"
"Aquarius/Let the Sun Shine In"
"California Soul"
"Stone Soul Picnic"
"Workin' on a Groovy Thing"
Some of the songwriters popularised by The Fifth Dimension later went on to careers of their own, especially Ashford & Simpson, and two members of the group gained later fame under the own names as Marilyn McCoo and Billy Davis Jr.