BelgiumJef Martens is a House act from Belgium, ranked #1151 in the world on the DJ INDEX with 285,900 monthly Spotify listeners. That also puts them #20 in Belgium and #429 in House among the acts we track. Their monthly audience has grown 11% over the 6 weeks we have tracked them, from 259K to 286K. They have 14,366 Spotify followers and a Spotify popularity score of 52/100. Their most-streamed track on Spotify is “What The Rain Whispered Softly”.
Who Jef Martens is
Jef Martens, better known by his stage name Basto (stylized as Basto!), is a Belgian record producer, musician and DJ. He primarily produces electro house music, and he is signed to the ARS label. He has produced using various aliases such as Bitch Boys, Candyman, Dirty Bunch, DJ Basik, Felix Project, Jin Sonic, Kings of Porn, and Lazy Jay. He was also a member of the Belgian dance group Lasgo. Martens co-produced with the band in 2009 and 2010 on a number of singles. He is best known for producing Azealia Banks' hit debut single "212" under the alias of Lazy Jay, together with his brother Toon. He also produced "Scream & Shout" for will.i.am and Britney Spears in 2012.
Biography from the Jef Martens article on Wikipedia, available under CC BY-SA 4.0.
Most played tracks
The tracks Spotify surfaces first for Jef Martens, with its own 0–100 popularity score alongside.
What The Rain Whispered SoftlyAvondland · 2020512
And So the Story BeganEvenings on Instagram, Pt. I · 2019483When She FlowsAvondland · 2020414
HomelandAlmost Home · 2021365
Whispering TidesUndertow · 2025296
All The Little Things You SaySketches Of You · 2020337
When We're On The MountainBuilding A Dream · 2021368
Evening GoldEvenings on Instagram, Pt. III · 2019399
Until The Blissful DawnLooking At The Stars · 20243610Almost But Not QuiteEvenings on Instagram, Pt. III · 201935Latest releases
20 recent albums and singles. Cover art links through to Spotify.
Afterglow2025 · albumUndertow2025 · album
Songs Of Acceptance2025 · album
Your Glow Eternal2025 · album
Almost Unbreakable2025 · album
You Never Really Left2025 · album
Don't Let Tomorrow Come Just Yet2025 · album
The Weight Of Love2025 · album
Remember The Dreams2025 · album
The Coldest Day2025 · album
Hail To The King2024 · album
Journey2024 · albumPost this ranking
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</a>Listener trend
7 weekly snapshots. Peak so far: 286K in the week of Sep 28, 2026.
Scene ranks
Around them in the chart
Artists to compare
Acts at a similar level in house, and the biggest names from Belgium.
Jef Martens vs the field
Settle it on the numbers — monthly listeners, rank and trend, side by side.
Jef Martens in numbers
How many monthly Spotify listeners does Jef Martens have?
Jef Martens has 285,900 monthly Spotify listeners in the week of Sep 28, 2026, as published on their public Spotify artist page.
What is Jef Martens's world ranking?
Jef Martens is ranked #1151 of 4408 electronic music artists in the DJ INDEX, which ranks purely by monthly Spotify listeners.
Where is Jef Martens from?
Jef Martens is from Belgium, where they rank #20 among the acts we track.
What kind of music does Jef Martens make?
Jef Martens is categorised as House in the DJ INDEX.
Snapshot from the week of Sep 28, 2026. Listener figures come from Spotify's own public artist page and are rounded.