Conversation so far:
What did the Hansons do in 1992?
Hason's first performance as a professional group took place in 1992 at the Mayfest Arts Festival in Tulsa.
Did the Hansons have a good fan base?
Yes Hanson did, enough to have one day out of the year dedicated to them.
What did the good fan base allow Hanson to do?
Although 'Hanson Day' was originally intended to be a one-time occurrence, many Hanson fans all over the world still recognize May 6 as Hanson Day every year.
What else can you tell me about Hanson's early years?
They were known as the Hanson Brothers, before shortening the name to Hanson in 1993.

Question: Did they play any other festivals or concerts?
Self-contained rewrite: Did Hanson play any other festivals or concerts?