Conversation so far:
What did Rhapsody of Fire start things off with?
In the spring Rhapsody started their first tour, starting in Sweden.
Why was this so important?
They performed with Stratovarius and Sonata Arctica in Spring 2000 supported by their new drummer Alex Holzwarth.
Why was this so terrible?
After the tour they began recording their new album, Dawn of Victory.

Question: What is so terrible?
Self-contained rewrite: What  performed with Stratovarius and Sonata Arctica in Spring 2000 supported by their new drummer Alex Holzwarth so terrible