Rihanna's Diamonds was produced for the Victoria Secret Fashion Show in December, showcasing a 2.5 million dollar diamond studded bra. The success of the single ties Rihanna with Madonna in at 4th for number one singles. Michael Jackson is in at third place with 13 number ones, Mariah Carey has 18 and the Beatles have a astonishing 20. Check out more info here:

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-mO
http://www.mtv.com/news/articles/1697792/rihanna-madonna-number-one-singles.jhtml