听下面一段较长对话，回答以下小题。
【小题1】What does Greg Samson do?

A．A host.

B．A singer.

C．A dancer.

【小题2】What made Katy shocked about Greg Samson?

A．His new songs.

B．His excellent dancing skills.

C．His show with new elements.

【小题3】Why does Greg Samson run for five miles before a performance?

A．To keep fit.

B．To lose weight.

C．To explore a new place.

【小题4】What will Greg Samson do in the City Stadium tomorrow?

A．Throw a party.

B．Have a performance.

C．Hold a press conference.