Calvin Harris rents out his flat to students for £400 each.
The 'Summer' hitmaker earned an estimated £43 million last year and he and his new girlfriend, 'Shake It Off' singer Taylor Swift were recently named the world's highest-paid celebrity couple but it seems it's not just his music and modelling campaigns that are keeping him wealthy.
The 31-year-old star from Dumfries in Scotland reportedly rents out his four-bedroom property in Glasgow to university students for £400 a room.
However, having a Las Vegas residency and dating one of the world's biggest popstars has clearly been keeping him busy as he's been slacking on his duties as a landlord.
A source told The Sun newspaper: "Calvin's so busy he's let a few things slide. One tenant complained he didn't fix a broken fridge for six months."
Meanwhile, Calvin - who previously dated 'Poison' hitmaker Rita Ora - is said to be feeling "inspired" by his successful girlfriend.
A source said previously: "She's the only female on the planet he feels inspired by, because of what she's achieved."