There is more than one artist with this name:
1. BETTY is an alternative rock group from New York City.
2. Betty (ベティ) was formed in July 2005 by 勇 and たら.
3. A Belgian TV-personality that released some singles like "Gek op jou" and "Boys, boys, boys".
4. A U.S Hard/Psych band from the 70's.
5. A female singer-songwriter from Mexico, was a member of the 90s pop group "Voces". Released the album "Alma Desnuda" in 2005 on Univision Music

Read more about Betty on Last.fm.