Question: What band did former a former member, who began her singing career in a girl group named Trinity Stone, who was well known for her vocals similar to an American pop singer and top-charting female vocalist of the late 1950s, belong to
Sentence (from "Jade Ewen"): Ewen began her singing career in a girl group named Trinity Stone, which signed with Sony BMG in 2005 but disbanded in 2007 without releasing an album.
Relevant evidence: No