From the Pips to the O'Jay's, Gladys Knight, the "Empress of Soul", continues to rock audiences with her timeless hits such as "Midnight Train to Georgia" and "If I Were Your Woman". Though Gladys Knight has already completed a "farewell" tour of sorts, the famed singer just couldn't put down the mic, as she is scheduled to perform with the O'Jays for the rest of the year, and beyond.