Read the following context and answer the question.
Context: [ Just slightly more than 24 hours]By the time you read this post , Japanese artist Shigeru Ban would have boarded and left Singapore on a jet plane . When I was first asked to get Ban 's schedule from the Exhibitions team , everything was pretty hush hush . Apparently , Ban is akin to A - lister artistes at MediaCorp and it would be a pleasure to meet him . So when I finally heard that he was going to be here this weekend , I asked for the schedule once again . And I got it . Ban , the artist of the Containart Pavilion , arrived here last evening .
Question: Why is it so hard to get a schedule for Ban ?
Answer:


Ban is very desireable to others and is treated like a rock star .