Conversation so far:
where was Corbin Bleu born?
Bleu was born in Brooklyn, New York
when was Corbin Bleu born?
He was born on February 21, 1989
who were Corbin Bleu's parents?
Bleu was born in Brooklyn, New York, the son of Martha (née Callari) and David Reivers.

Question: did he have any siblings?
Self-contained rewrite: did Corbin Bleu have any siblings?