Conversation so far:
Where was the singer Pink born?
The singer Pink was born in Doylestown, Pennsylvania.
Who were the singer Pink's parents?
The singer Pink to emergency room nurse Judith Judy Moore (née Kugel) and insurance salesman James Jim Moore.
Where did the singer Pink go to school?
The singer Pink attended Central Bucks High School West.
What happened in the singer Pink's early life?
In high school, the singer Pink joined her first band, Middleground, but it disbanded upon losing a battle of the bands competition.

Question: Which group?
Self-contained rewrite: Which group was the singer Pink convinced to audition to become a singer of?