Conversation so far:
What year did Lou Gramm leave Foreigner?
Gramm decided to leave the group in May 1990.
Why did Lou Gramm leave Foreigner?
Gramm announced his departure from Foreigner in May 1990 due to differences with Jones, and to focus on his solo career.
What work did Lou Gramm do as a solo?
Gramm released Ready or Not as a solo.
What year was Lou Gramm's solo Ready or Not released?
Gramm released Ready or Not in January 1987.
Did Lou Gramm do any other solo work besides Ready or Not?
Gramm followed Ready or Not with his second solo release, Long Hard Look.
What year was Lou Gramm's solo Long Hard Look released?
Gramm's solo Long Hard Look was released in October 1989.
Did Lou Gramm ever reunite with Foreigner?
Gramm ended up rejoining Foreigner.
Did Johnny Edwards stay with Foreigner?
Johnny's tenure as Foreigner's lead vocalist ended when Gramm reunited with the band.
Did Lou Gramm join any other bands other than Foreigner?
Gramm formed the short-lived band Shadow King.

Question: How long were they around?
Self-contained rewrite: How long was the band Shadow King around?