Conversation so far:
What is the Hiatus for the Spice Girls?
In January 2001, the Spice Girls unofficially announced that they were beginning an indefinite hiatus.
what happened in 1998 with the spice girls?
While on tour in the United-States, the Spice Girls continued to record new material and released a new song, Goodbye, before Christmas in 1998.

Question: tribute to what?
Self-contained rewrite: 'Goodbye' was a tribute to what?