A unique taxi service is offering to let passengers ride for free, as long as they sing for their driver.
The Singalong Shuttle is the first in the world to only accept a tune as payment.
The electric shuttles will keep driving as long as the passengers continue singing, with each motor fitted with a tablet to let guests choose their favorite song to belt out from the back seat.
And drivers of the eco-friendly cars refuse to accept any cash or card payments, so warming up the vocal chords is the only way to get the taxi moving.
Operating in Finland, the concept was launched by clean-energy company, Fortum, after they sponsored a fleet of electric BMW i3 hatchbacks.
They will start running on July 6, ferrying music fans to and from the Ruisrock festival.
The company hopes the fun idea will help to get more young people to embrace the idea of electric cars.
And the quiet i3s mean there’s hardly any engine noise to disrupt your performance.
Fortum’s spokesman, Jussi Malkia, said: “With Singalong Shuttle we want to show people in a joyful way how comfortable and easy it is to drive an electric car.
“The silent electric cars make it possible to enjoy singing without background noise.
“The car runs on electricity, so the loudest noise is the one (passengers) make. The car keeps on moving as long as you keep on singing.
“The drivers of Singalong Shuttle will not accept cash or credit cards — the only way to pay is to sing.”