Conversation so far:
When did Weezer go on hiatus?
Weezer completed the Pinkerton tour in mid-1997 and went on hiatus until Weezer reunited in April 2000.

Question: What did some of the artists do when they left on hiatus?
Self-contained rewrite: What did some of the artists from Weezer do when they left on hiatus between mid-1997 and April 2000?