Conversation so far:
Where was Christina Aguilera born?
Christina María Aguilera was born in Staten Island, New York City, on December 18, 1980
How long did Christina Aguilera live in NYC?
Christina Aguilera's family moved frequently because of her father's military service, and lived in places including New Jersey, Texas, New York, and Japan.
When did Christina Aguilera begin singing?
As a child, Christina Aguilera was drawn to soul and blues records her grandmother bought and would practice singing
When did Christina Aguilera become famous?
Christina Aguilera appeared on television shows in her early years before gaining a recording contract with RCA Records in 1998
How did Christina Aguilera get on the Mickey Mouse Club?
In 1991, Christina Aguilera auditioned for a position on The Mickey Mouse Club, although she did not meet its age requirements. She joined the television series two years later

Question: How long was she on the show?
Self-contained rewrite: How long was Christina Aguilera on the Mickey Mouse Club?