Question: What nationality is the performer of song Someday Sweetheart?
Sentence (from "Mildred Bailey"): 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 SwingThe Rockin' Chair Lady" and "Mrs. Swing".
Relevant evidence: Yes