Gladys Knight Reveals Her DWTS Diet That Led to a 60-Pound Weight Loss (VIDEO) Share Tweet April 25, 2012 by Molly Related: Dancing With The Stars, Season 14 Episode 22, TV Stars, Diet and Fitness, Season 14 Contestants, Tristan MacManus, Gladys Knight, Reality Gossip Credit: YouTube Gladys Knight on her DWTS Season 14 elimination.