Conversation so far:
What type of music did The Corrs make?
The Corrs are an Irish band that combine pop rock with traditional Irish themes within their music.
When was The Corrs formed?
In 1990, Jim and Sharon added their younger siblings, to form a quartet.
How many sibling in total were in The Corrs?
There were four.

Question: What were the names of the sibilings
Self-contained rewrite: What were the names of the siblings in The Corrs?