A stunning singer and her brother-in-law have died following a road-rage incident in Brazil.

Rosy Mel, 29, and Adalberto Gomes Macedo were killed after their car left the GO-306 state highway in a rural area of Mineiros at around 5pm on Christmas Day.

According to the Fire Department, 33-year-old Adalberto, who was behind the wheel, had quarrelled with a motorcyclist travelling in the same direction.

The car had then left the road and smashed into a fence.

Rosy died at the scene, while Adalberto was taken to a health facility, where he ended up dying from his injuries.

A snap shows how the car was badly mangled in the crash.

The biker involved in the row was also knocked off his motorcycle, but it is not yet clear if he collided with the car.

The biker and three other passengers in the car at the time were also taken to a health facility.

Their identities and condition were not clear at the time of reporting.

Rosy Mel, whose birth name is Rosivane Santos Silva, lived in Mineiros and was a sertanejo – Brazil’s answer to country and western music – singer.

She was also a law student and boasted nearly 13,000 followers on Instagram at the time of writing.

It is not clear if police are investigating the case.