The former Queen frontman, who died in 1991, gave a stunning performance when he joined his ex-bandmates and Adam Lambert on stage in 2015.

When Freddie Mercury joined Adam Lambert for a spine-tingling duet of 'Bohemian Rhapsody' in 2015

Gary Numan and Freddie Mercury

Freddie Mercury's kindness revealed in heartwarming story from Gary Numan involving a Big Mac in Tokyo

Queen's six-minute masterpiece 'Bohemian Rhapsody' is one of the most famous songs of all time and sold more than one million copies in 1975 alone.

The Story of... 'Bohemian Rhapsody' by Queen

Brian May has released a brand-new selection of backstage images of Freddie Mercury and his Queen bandmates Pictured (L to R) Mary Austin, Freddie Mercury and Roger Taylor.

Freddie Mercury unseen photos: Brian May releases new-found private images of Queen bandmates

Queen's Brian May, Freddie Mercury, John Deacon and Roger Taylor were doing press to promote Live Aid in 1985.

Queen speak candidly about Live Aid 'egos' in rare pre-concert video: "It's going to be chaos"

The Freddie Mercury Tribute concert saw the George Michael and Lisa Stansfield (top) join stars including David Bowie and Annie Lennox in celebrating the life of the Queen frontman.

The Freddie Mercury tribute concert: A guide to the greatest gig of the ‘90s

George Michael performed with Queen at Freddie Mercury's tribute concert in 1992

Queen's Roger Taylor responds to rumours George Michael turned down replacing Freddie Mercury

Adam Lambert was performing at the Kennedy Centre Honours on December 26, 2018 when he paid tribute to the legendary singer with his own take on her classic song 'Believe', and moved the pop diva to tears in the audience.

Extraordinary moment Adam Lambert brought Cher to tears with mournful cover of dance hit 'Believe'

Freddie Mercury playing the drums during a rehearsal for Queen's News Of The World tour at Shepperton Studios in October 1977.

Queen: Rare video of Freddie Mercury playing the drums at a band rehearsal in 1977 is phenomenal

Adam Lambert was a judge on The X Factor Australia in 2016 when he surprised a fan on stage with a duet of 'I Want To Break Free'

Adam Lambert's surprise duet of Queen's 'I Want To Break Free' during stunned singer's X Factor audition

Brian played a poignant guitar solo of 'You'll Never Walk Alone', dedicating the song to the fundraiser who tragically died on February 2 after being diagnosed with coronavirus.

Queen's Brian May releases heart-wrenching guitar solo of 'You'll Never Walk Alone' in tribute to Captain Tom

The Guitarist performed the lonely solo high above the city and was accompanied by the orchestra far below him in the Palace gardens, whilst being projected live to millions of people across the world.

Jaw-dropping moment Brian May played 'God Save The Queen' on the roof of Buckingham Palace

Adam Lambert

Adam Lambert facts: Queen singer's age, partner, career and American Idol past revealed

Taking to the stage on July 14 and in a nod of respect to the Queen drummer, Adam Lambert invited Roger Taylor to join him on stage for a special performance of 'Under Pressure'.

When Adam Lambert and Roger Taylor sang 'Under Pressure' and Roger’s son stepped up to play drums

Queen were playing a concert at Milton Keynes Bowl in Buckinghamshire on June 5 when Freddie Mercury sat on the stage to play a singing game with the crowd

Freddie Mercury vs Crowd: When the Queen frontman challenged his fans to a spine-tingling sing-off

To pay tribute to David Boiwe, acts from across the world took part in an online concert yesterday (January 10) to celebrate the life and works of the boy from Brixton.

Adam Lambert, Gary Barlow and Boy George perform David Bowie's greatest hits at star-studded tribute concert

Freddie Mercury may have been the frontman of Queen, but it's Brian May's singing voice in a clip from 2003 that blows us away.

Brian May singing duet with Pavarotti on 'Too Much Love Will Kill You' is spectacular

Brian May joins Westlife and Michael Bolton in releasing a fragrance for women

Brian May has released a perfume: Plus 5 unlikely celebrities you never knew had their own fragrances