was just beyonce giselle knowles, a little girl in suburban houston. >> beyonce was really a quiet kid. kind of to herself. >> hoping to get beyonce to come out of her shell, matthew 7-year-old daughter to darlette johnson's dance studio. >> when you first saw her and she first came in, did you even notice her? >> what i did notice about her is she's very shy. you ask her, what's your name? beyonce knowles. you could barely -- can you say it again, sweetheart? beyonce knowles. >> but on the dance floor -- >> beyonce would dance so hard, she would lose her costume pieces. sometimes her hat would come off, because she was fierce. >> it was here that beyonce created her now famous alter ego. >> now, that's sasha fierce. that's who that is. >> when she got on the stage, she became a different person. >> but no one knew beyonce had a secret. >> i hummed the song and she finished it. and it blew me away. and i stopped and i told her, sing it again. and she wouldn't sing it again, because once again, she was very quiet, very shy. and i promised her a dollar and she sung it again and i was just, i was floored. when he parents came to pick her up, i told them, she can sing