20 Of The Sexiest Old School Female Singers Who Still Got It Featured · June 22, 2015 You already voted!00 Share Kathy Sledge of Sister Sledge Kathy is 56 years old and giving these young girls out here something to look up to. Get it Kathy! Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22