She doesn't know what "studio singer" means. A "Studio Singer" is a background singer or someone who is hired to sing on a track but not be presented or given credit for singing. Martha Wash has been a studio singer and she can sing the socks off of anyone in the studio and live. "Studio Singer" does not mean that you sound better in the studio than you do live. That sounds like an excuse for someone who has to rely on auto tune to sound good in the studio.