Conversation so far:
Where was Lady Gaga born?
Lady Gaga was born at Lenox Hill Hospital in Manhattan, New York City.
Who are Lady Gaga's parents?
Lady Gaga's parents are Cynthia Louise (née Bissett), a philanthropist and business executive, and Internet entrepreneur Joseph Germanotta.
Does Lady Gaga have siblings?
Lady Gaga has a younger sister, Natali Germanotta.
What was Lady Gaga like as a child?
Lady Gaga described her high school self as very dedicated, very studious, very disciplined but also a bit insecure. She considered herself a misfit.

Question: When did she start singing?
Self-contained rewrite: When did Lady Gaga start singing?