Conversation so far:
Who was the new frontman?
former Hurricane singer Kelly Hansen.
When did he join the band?
March 2005, making his debut with the group on March 11.
Who did he replace?
Jones, the founder and only remaining original member of Foreigner.
What instrument did he play?
singer.
How many albums did he release?
Their 2005 BMG album, Extended Versions, featured the new line-up.

Question: Did he leave the band?
Self-contained rewrite: Did Kelly Hansen leave Foreigner?