Rihanna has sparked health fears after pulling out of a UK trip.
The 24-year-old singer had been due to fly into London to film a TV special at the beginning of a 10-week stay but the star has suddenly cancelled all her British commitments, prompting speculation she has been partying too hard.
A source told The Sun newspaper: "She cancelled her trip and all work commitments in the UK at the very last minute, which is very unlike her.
"She has been hitting it hard for months. She smokes, drinks and parties hard on top of work commitments."
The What's My Name hitmaker's management cited "sickness" for her axing of the TV show.