Question: who were the masked singers that have been revealed?
Answer: Week Two: The Llama - Drew Carey. ...  Week Three: Miss Monster - Chaka Khan. ...  Week Four: Tony Hawk - Elephant. ...  Week Five: Dionne Warwick - Mouse. ...  Week Six: Taco - Tom Bergeron. ...  Week Seven: Bear - Sarah Palin. ...  Week Eight: Swan - Bella Thorne. ...  Week Nine: T-Rex - JoJo Siwa.