Demi Lovato’s nails at the 2011 NCLR ALMA Awards held at Santa Monica Civic Auditorium on September 10, 2011 in Santa Monica, CA.

Demi Lovato’s red nails at the HTC Status Social at Paramount Studios in Hollywood, CA on July 19, 2011.

Demi Lovato’s gold glitter nails at the 2011 VH1 Do Something Awards at Hollywood Palladium on August 14, 2011 in Los Angeles, CA.

Demi Lovato’s black pointy nails at an in-store appearance signing copies of her cover issue of Seventeen Magazine at Barnnes & Noble in Glendale, CA on January 4, 2012.

Demi Lovato’s silver nails at the 2011 MTV Video Music Awards at the LA Live on August 28, 2011 in Los Angeles, CA.

Demi Lovato’s semi-transparent acrylic nails at the nominations announcement for the 2010 American Music Awards at the JW Marriott at L.A. Live on October 12, 2010 in Los Angeles, CA.

Demi Lovato’s black nail polish at the 2008 MTV Video Music Awards at Paramount Pictures Studios in Los Angeles, CA on September 7, 2008.

Lexus Amanda’s black acrylic nails with white tiger stripes

Lexus Amanda’s French manicure with black tips

Lexus Amanda’s square French manicure.