Complaining that she looked heavier than usual in a clip, Rihanna has demanded re-editing of the online video that she shot for a charity drive.
The svelte songstress has acted in UNICEF's Celebrity Tap campaign, which asks stars to donate bottles of their own tap water to raise money and awareness for children in need of clean drinking water globally.
Rihanna stars in a stylish black-and-white PSA on celebritytap.org. She can be seen in a clinging black minidress walking down a hallway into an ultramodern kitchen where she fills a clear glass with clean tap water and sexily drinks it.
The pop star's self-involved demands caused 'extensive delays', holding up the project's launch for more than a week at a cost of more than 15,000 dollars.
"We're surprised to hear that, she was not unhappy. We were very thankful. Rihanna was very collaborative and very participatory. What was shot was what exists now," said a UNICEF representative.