The clip has since been deemed "inappropriate" for viewers under the age of 18 on YouTube.com and a restriction has now been put in place, with the warning message: "This content may contain material flagged by YouTube's user community that may be inappropriate for some users."
Now Rihanna has reacted to the outrage, commenting on Twitter.com, "They watched Umbrella... I was full nude."
And to ensure her fans can get a glimpse of the promo, the singer has posted an unrestricted version on her own website. She writes, "U can now view the S&M video on www.Rihannanow.com UNFLAGGED!!!"