Conversation so far:
Where is the Rodeo located?
held in NRG Stadium.
How long does the rodeo last?
20 consecutive evenings of rodeo and concert.
How many people participate in the rodeo?
featuring 280 of the top professional cowboys.
What kind of events happen?
rodeo and concert.

Question: What kind of concerts perform?
Self-contained rewrite: What kind of concerts perform at the Houston Livestock Show?