CLEAN : Bowie's art collection goes on view in New York

The video discusses the highlights of David Bowie's art collection, which will be auctioned in London. It emphasizes Bowie's interest in diverse art forms, including works by Jean-Michel Basquiat. The collection reflects Bowie's innovative approach to both art and music, showcasing his willingness to explore beyond the mainstream. The most valuable piece is Basquiat's 'Airpower', estimated at $3.3 to $4.6 million.

Why is the collection considered 'cool' according to the speaker?

What is the estimated value of Jean-Michel Basquiat's artwork mentioned in the text?