Freddie Mercury is undoubtedly one of the greatest rock stars ever. The enigmatic but energetic frontman of Queen had all the qualities of a legendary singer in him – whether it be charisma or style, Freddie had it all.

And it’s not only his fans who regard the artist to be the greatest of all time. Turns out, science also agrees.

According to a recent research published in Logopedics Phoniatrics Vocology, scientists found that Freddie is the greatest vocalists of all time.

The study, which was carried out by a team of Czech, Swedish and Austrian scientists, found Freddie’s vibrato was 7.04 Hz whereas the average vibrato of humans varies from 5.4 Hz to 6.9 Hz.

Sadly, the singer who influenced millions, if not billions, through his close-to-heart music left us too soon. Freddie died 27 years ago in 1991 from complications relating to AIDS.

Had the artist, whose real name was Farrokh Bulsara, not died in such an early age, we would’ve been celebrating his 72nd birthday on September 5.

However, the legendary singer was given a perfect tribute on the day by staff from Heathrow airport’s baggage handling department – where the singer used to work while living in Feltham.

The baggage handlers re-enacted some of the classic Freddie moves as they presented an adorable performance on the song ‘I Want To Break Free.’

Baggage Manager Adam Dewey, who also stars in the video, said before the performance: “Freddie Mercury is an undisputed rock legend and it has been an absolute blast planning his birthday celebrations at Heathrow Airport, where he once worked.

“Myself and the other baggage handlers taking part have put everything into these dance routines and we can’t wait to see the faces on holidaymakers when they strut their stuff in the arrivals hall.”

The airport also gave away free lounge passes to passengers who were named Freddie, Fred, Farrokh, or Frederick.