Kerli’s light blue nails in her “Zero Gravity” music video.

Kerli’s long pointy nails in her “Zero Gravity” music video.

Kerli’s light green nails in her “Zero Gravity” music video.

Rihanna at the 2010 American Music Awards at the Nokia Theatre L.A. Live in downtown Los Angeles, CA on November 21, 2010.

Rihanna performs on NBC’s Today Show concert series at Rockefeller Plaza on May 27, 2011 in New York City.

Rihanna’s dollar bill nails with jewels at the 52nd Annual Grammy Awards at Staples Center in Los Angeles, CA on January 31, 2010.

Rihanna at the 2009 American Music Awards at the Nokia Theatre L.A. Live in Los Angeles, CA on November 22, 2009.

Rihanna at the 2007 MTV Movie Awards at the Universal Amphitheatre in Los Angeles, CA on June 3, 2007.

Rihanna in the press room at the 2007 MTV Video Music Awards at The Palms Hotel And Casino in Las Vegas, NV on September 9, 2007.

Rihanna at the 2006 Nickelodeon Kids Choice Awards at UCLA in Los Angeles, CA on April 1, 2006.