Conversation so far:
What was Justin Timberlake's first business venture?
Justin Timberlake has co-owned or provided celebrity endorsement for three restaurants in the United States - Chi, Destino, and Hospitality.
What was Chi endorsed by Justin Timberlake about?
Justin Timberlake's restaurant, Chi opened in West Hollywood, California in 2003.

Question: What other business ventures does he own?
Self-contained rewrite: What other business ventures does Justin Timberlake own besides the restaurants Chi, Destino, and Hospitality?