Conversation so far:
who is inducted in the rock hall of fame
2020 inductees into the Rock & Roll Hall of Fame include Depeche Mode, The Doobie Brothers, Whitney Houston, Nine Inch Nails, The Notorious B.I.G., and T. Rex.

Question: when do tickets go on sale for the induction
Self-contained rewrite: when do tickets go on sale for the rock and roll hall of fame induction