"Where have you been all my life?" says the caption of the picture which Rihanna posted on her Twitter account. The singer snapped a picture of herself modestly covering her upper body with an arm while her messy hair up in a bun and back to its natural color.

The "We Found Love" singer showed off her envy worthy body which looks more toned than ever. The singer was photographed at the Grammy and BRIT Awards both in low cut gowns and noticeably slimmer figure.

Riri's dad admitted that the last time she saw the pop singer; he told her that she was fat. During his interview for a publication, Ronald Fenty, Rihanna's father said that the singer has been on a strict diet ever since his comment.

"I actually thought she was a little fat last time I saw her. I saw her this time, I thought she was back to her normal size. I used to joke with her, 'Robyn, you're getting too fat!' But I think she's fine, I think she looked excellent, as everyone saw, at the Grammys," Mr. Fenty said. "She's dieting, she's working out."

But during her interview with Vogue magazine, Rihanna confessed that she didn't want to lose weight, rather she wants to tone up.

"For the first time, I don't want to get rid of the curves. I just want to tone it up. My body is comfortable, and it's not unhealthy, so I'm going to rock with it," the 24-year-old said.

Meanwhile, Rihanna made it obvious that she wishes to be involved in the Invisible Children's KONY2012 campaign which is becoming viral on the internet.

"PLEASE go to http://www.Invisiblechildren.com Even if its 10 minutes... Trust me, you NEED to know about this! #1LOVE," the singer tweeted yesterday.

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