Mildred Bailey (born Mildred Rinker; February 27, 1907 – December 12, 1951) was a Native American jazz singer during the 1930s, known as "The Queen of Swing", "The Rockin' Chair Lady" and "Mrs. Swing". Some of her best-known hits are "For Sentimental Reasons", "It's So Peaceful in the Country", "Doin' The Uptown Lowdown", "Trust in Me", "Where Are You?", "I Let a Song Go Out of My Heart", "Small Fry", "Please Be Kind", "Darn That Dream", "Rockin' Chair", "Blame It on My Last Affair", and "Says My Heart". She had three singles that made number one on the popular charts.