Is Scott Hanson the son of Dale Hanson?

Yes. They are brothers. I use to date Chris in college.

a band!! They had a a hit called MMMBop!! :) and are awesome

No, they are not related. I worked for Scott's father when he was a teenager, so I knew the family well.

Hanson is the American pop rock band formed in Tulsa, Oklahoma by brothers Isaac, Taylor, and Zac Hanson

Taylor, Zac & Isaac (the band Hanson) , their sister!