Who was the lead singer of Queen?

system
queen kaa pramukh gayak koun tha?
user
fredy mercury 1991 main apni mrityu tak varsh 1970 tak queen ke pramukh gayak the. fredy kii mrityu ke baad se, kai gayakon ne rani ke saath pradarshan kiya he, vishesh rup se adam lambert jinhone 2014 ke baad se queen ke saath kai vishwa paryaton puraa kiya he.
assistant
<|system|>
</s>
<|user|>
queen kaa pramukh gayak koun tha?</s>
<|assistant|>
fredy mercury 1991 main apni mrityu tak varsh 1970 tak queen ke pramukh gayak the. fredy kii mrityu ke baad se, kai gayakon ne rani ke saath pradarshan kiya he, vishesh rup se adam lambert jinhone 2014 ke baad se queen ke saath kai vishwa paryaton puraa kiya he.</s>
