He is second only to pop queen Adele — who has seen her fortune swell by around 50% in a year when she released no new material — who tops The Sunday Times Rich List’s countdown of the biggest financial successes in the music world aged 30 and under.
Superstar DJ Harris has had a string of major hits with nine top singles from his latest album 18 Months and has worked with acts such as Cheryl Cole, Rihanna, and LMFAO. Last year, he was named songwriter of the year at the Ivor Novello Awards.
The former shelf-stacker — whose real name is Adam Richard Wiles and who is dating pop star Rita Ora — is said to be able to command £100,000 for a night’s work as a DJ in Las Vegas.
Cole — who has recently signed up for a return to The X Factor panel — drops to third place from last year’s number two although she has banked a further £2m according to the compiler of the list, Philip Beresford.
The five members of One Direction take joint fourth place with an estimated £14m (€17m) each, although they have a combined fortune of £70m.
Niall Horan, Zayn Malik, Harry Styles, Louis Tomlinson, and Liam Payne are thought to have seen their finances swell by £9m in the past 12 months, which has seen them tour, release a movie, and a third album.
Their inclusion in the upper reaches of the list — along with Mumford and Sons frontman Marcus Mumford and his wife Carey Mulligan, together worth £13m (€16m) — has edged out regular faces such as Katie Melua and Charlotte Church.
Meanwhile, in its over 30s Rich List, X Factor boss Simon Cowell has raked in a further £50m over the past year thanks to his music and television hits.
The mogul has seen his worth swell to £300m to put him in eighth place.
Paul McCartney remains in fourth place with his and wife Nancy Shevell’s fortune said to be at £710m, up £30m on last year.
U2 are sixth with a combined wealth of £428m.
Their figure is down £92m on last year due to their former manager Paul McGuinness no longer being included in the total. He is separately listed at 32.
The full Rich List is published in this weekend’s edition of The Sunday Times.
Top ten (with previous ranking and 2013 wealth estimate, where applicable, in brackets).
1 (1) Adele £45m (€55m)
2 (new) Calvin Harris £30m (€37m)
3 (2) Cheryl Cole £16m (€20m)
4 (17) Niall Horan £14m (€17m)
4 (17) Zayn Malik £14m (€17m)
4 (17) Liam Payne £14m (€17m)
4 (17) Harry Styles £14m (€17m)
4 (17) Louis Tomlinson £14m (€17m)
9 (3) Leona Lewis £13m (€16m)
9 (new) Marcus Mumford, Carey Mulligan €16m