Conversation so far:
What happened in 1997?
Middle of Nowhere was released in the US on May 6, 1997, selling 10 million copies worldwide.
What was the most popular hit?
The band was nominated for three Grammy Awards in 1998: Record of the Year, Best New Artist, and Best Pop Performance by a Duo or Group with Vocal.
What were some of the songs in the album?
CANNOTANSWER.
tell me about their commercial success?
In response to the demand for their earlier work, Hanson re-released MMMBop as 3 Car Garage, minus four tracks, in May 1998.
did that bring them success?
To date, the tracks from Boomerang have not been re-released.

Question: what else happened in 1998?
Self-contained rewrite: Besides the re-release of MMMBop as 3 Car Garage, what else did Hanson do in 1998?