Rihanna: Pre-Grammy Party!

Rihanna is true blue in a form-fitting Preen dress at the Verizon & BlackBerry Grammy Party at Boulevard 3 on Friday (February 6), in Los Angeles.

The 20-year-old Bajan babe finished off her look with a spectacular pair of platforms from Nicholas Kirkwood for Rodarte.

Recently, Rihanna has been on the hunt to help a 5-year-old New York City girl find a bone marrow donor. “When I saw the video of Jasmina it broke my heart. It is so unfair that for a black patient it’s so much harder to find a bone marrow match,” Rihanna tells People. “Jasmina has acute leukemia and she needs a bone marrow transplant to live.”

For more info on how to help, visit DKMSAmericas.org.

15+ pictures inside of Rihanna‘s pre-Grammy party…