To mark the influence of these music giants, online auction house Catawiki will host sales dedicated to the Liverpool lads, The King and Ziggy Stardust (Aladdin Sane, or The Thin Duke - depending on who you're more of a fan of.)

6th April: The Beatles

From the 1960s onwards The Beatles dominated the world's music scene of the 20th century. From rock 'n' roll to Indian-inspired psychedelic sounds the foursome played an incredible role in shaping modern and contemporary music.

68adef54-02b5-11e7-8bf8-15fc2f817dae Unknown - The Beatles - 1961

72ae5c5a-080a-11e7-9877-56e6451d2f43 Alberto Durazzi - Agence Dufoto - The Beatles - Rome - 1965

Original Beatles Shell LP Album, 1979 Original Beatles Shell LP Album, 1979

01349e4c-1177-11e7-8f1a-67102b9daea9 Unknown (LFI) - John Lennon & Yoko Ono - The Beatles - 1960

Lennon, McCartney, Starr and Harrison's last live performance as the Beatles took place on January 30, 1969, on the roof of the Apple studio on Savile Row, London.

46afe4ba-080b-11e7-9345-571826deed39 Alberto Durazzi - Agence Dufoto - The Beatles - Rome - 1965

7th April: Elvis Presley

Elvis Aaron Presley (1935-1977) was and is the most successful solo artists in the world, having sold more than 1 billion records worldwide, rightly earning him the title of the "King of Rock 'n' Roll."

0068f8e8-f5c3-11e6-9289-4e1d5b17b680 Elvis Presley album collection on RCA and SUN records
Total of 11 Elvis Presley albums from 1950s to 1980s

blog.php-1429 Graduate T-Shirt Humes High School Class of 1953, featuring Elvis' name

His career began in the 1950s as one of the first representatives of the Rockabilly, with his gyrating performances and velvety soft voice he became a global star. In the 1960s, he starred and sang in numerous Hollywood movies, and then touring again at the end of the decade.

Following his untimely death at the age of 42, Presley's Graceland estate in Memphis, Tennessee, has since become a pilgrimage site for his fans.

001592f4-13da-11e7-989c-51482328d903 Uknown - Elvis Presley - 1960

9th April: David Bowie

Ross Marino - David Bowie - 1980s Ross Marino - David Bowie - 1980s

When David Bowie passed away at the beginning of last year, he left behind a legacy. His music combined art, high fashion whilst squashing outdated notions of gender and sexuality. Bowie's career was marked by his changeability and his love for reinvention. Ziggy Stardust, Aladdin Sane, The Thin Duke: all of David Bowie's alter egos had a different image, sound and vision.

Diamond Dog by Terry O'Neil Diamond Dog by Terry O'Neil

"The Man Who Fell On Earth" Deluxe Box Set "The Man Who Fell On Earth" Deluxe Box Set

282cbd2c-f129-11e6-95f1-541481b5f55a David Bowie, six unseen colour photographs, press-concert Roxy Theatre

Even legends have their heroes, Bowie put his world tour on hold and flew from London to New York to attend Elvis Presley's Madison Square Garden concert.