Many people start the list with one of the biggest influences on popular music in the 20th century, blues guitarist and singer Robert Johnson. He died in 1938 at the age of 27.
Another member is Brian Jones, a founder of the Rolling Stones. In 1969, at the age of 27, he was found dead at the bottom of a swimming pool.
Guitar hero Jimi Hendrix also passed when he was 27. He was found dead in a London flat in 1970.
Just 16 days after Hendrix's death, strong-voiced Janis Joplin also died at 27.
Jim Morrison (second from left), singer of The Doors, died in Paris in 1971. He was 27.
And more recently, Kurt Cobain, leader of the grunge band Nirvana, died in 1994 at the age of 27.