The Nobel laureate, Albert Einstein, was one of the greatest theoretical physicists who immensely contributed to the growth of modern physics and quantum mechanics. He is considered one of the most intelligent persons in history. Though not tested, his estimated intelligence quotient is regarded as a benchmark.
Known for his four-octave vocal range, Freddie Mercury is often considered one of the greatest lead singers in rock music history. His life was cut short by AIDS at the age of 45. In 2001, he was inducted posthumously into the 'Rock and Roll Hall of Fame.'