Conversation so far:
What happened to Hanson (band) in 1997?
May 6 was declared 'Hanson Day' in Tulsa by Oklahoma's then-governor Frank Keating.
What was the most popular hit by Hanson (band)?
Hanson are best known for the 1997 hit song MMMBop from their debut album released through Mercury/Polygram Records, entitled Middle of Nowhere, which earned three Grammy nominations.
What were some of the songs in the album Middle of Nowhere by Hanson
Middle of Nowhere yielded five singles: MMMBop, Where's the Love, I Will Come to You, Weird, and Thinking of You.
Tell me about Hanson (band)'s commercial success
Middle of Nowhere was released in the US on May 6, 1997, selling 10 million copies worldwide.
Did the album Middle of Nowhere bring Hanson (band) success
Hanson's popularity exploded during the summer of 1997.

Question: What else happened in 1998?
Self-contained rewrite: What else happened with Hanson (band) in 1998?