Conversation so far:
When was Tamar Braxton born?
Tamar Braxton was born March 17, 1977.
Who were Tamar Braxton's parents?
Tamar Estine Braxton was born to Michael and Evelyn Braxton.
Where did Tamar Braxton grow up?
Tamar Braxton is from Severn, Maryland.
Where did Tamar Braxton go to school?
Tamar Braxton attended Archbishop Spalding High School.

Question: When did she start singing?
Self-contained rewrite: When did Tamar Braxton start singing?