R&B singer Rihanna has been packing on the pounds lately. When fans spotted the “What’s My Name” singer at Coachella music festival last week, they noted she looked a little pudgy. Though her concert tour is breaking records over in Europe, her friends say Rihanna is depressed over slow ticket sales in the United States.

RiRi’s friends say it is her natural habit to pig out when she’s feeling out of sorts.

Now comes word that the 23-year-old Barbados native caused costly re-editing delays after she shot a charity public service announcement for UNICEF. She held up the PSA schedule after complaining that she looked heavier than usual in the online video clip.

When the editors told her that it wasn’t the video that was making her look fat, she bucked, and had to be calmed down by her handlers.

According to Page Six:

The svelte songstress participated in UNICEF’s Celebrity Tap campaign, which asks stars to donate bottles of their own tap water to raise money and awareness for impoverished children in need of clean drinking water globally.
Rihanna stars in a stylish black-and-white PSA on celebritytap.org, in which she slinks in a clinging black minidress down a hallway and into an ultramodern kitchen where she fills a clear glass with clean tap water and sexily drinks it. Source