system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
Who was the lead singer of Queen?

gpt
Freddie Mercury was the lead singer of Queen from the year 1970 until his death in 1991. Since the death of Freddie, many singers have performed with the Queen, most notably Adam Lambert who has completed several world tours with Queen since 2014.
