At 70, Dolly Parton rocks Stairway To Heaven as good as Led Zeppelin. When her undying classic I Will Always Love You became the No. 1 song of all time, after interpreted by the late Whitney Houston as part of The Bodyguard’s movie soundtrack, she thanked the younger singer for making her assured of a lifetime of royalties. Album photo courtesy of Wikipedia The song 9 to 5, her second biggest hit after Here You Come Again, has been made into a musical. Dolly’s 16 greatest hits went out as a compilation album in 2007. The Backwoods Barbie has been known for her big bosom, big hair and big heels; a look that never changed throughout her musical career.