The Royalettes' biggest hit was "It's Gonna Take a Miracle" in 1965, charting at #41 on the Billboard Hot 100 and #28 on the Billboard R&B chart.
The following year, yet another famed producer, Thom Bell, helped Williams score another number-1 R&B chart-topper with her remake of The Royalettes' "It's Gonna Take a Miracle", which became a Top 10 pop hit as well, reaching number 10 and number 6 on the Adult Contemporary chart as well.