Is it at the star's own expense to attend the awards and stay in the hotel?

Yes The stars attended the awards ceremony and stayed in hotels. Huang Porter, the host of the program, hinted to Jackson Yi: "Jackson Yi didn't let the organizing committee be responsible for the tickets and hotels of this film exhibition at his own expense. A hotel is a place where guests can stay and eat. Specifically, based on its architecture, the hotel provides services for its guests by selling rooms, restaurants and comprehensive service facilities.