Jessie J’s dark nails at at The Jingle Bell Ball at The O2 Arena in East London on December 4, 2011.

Jessie J’s half-black and half-tan nails at the 2011 MTV Video Music Awards at Nokia Theatre LA Live in Los Angeles, CA on August 28, 2011.

Avril Lavigne’s white nails at the 2011 Teen Choice Awards at Gibson Amphitheatre on August 7, 2011 in Los Angeles, CA.

Avril Lavigne’s black nails at the 2007 American Music Awards at the Nokia Theatre in Los Angeles, CA on November 18, 2007.

Avril Lavigne’s pink nails at the 2006 Nickelodeon Kids Choice Awards on April 1, 2006 at UCLA in Los Angeles, CA.

Avril Lavigne had multi-colored leopard print nails at the 2010 American Music Awards Rolling Stone Magazine VIP After Party at Rolling Stone Restaurant & Lounge on November 21, 2010 in Hollywood, CA.

Avril Lavigne’s chipped red nail polish at The “Friends and Family” Grammy Event hosted by the Music Industry’s Top Executives at Jim Henson Studios in Hollywood, CA on February 9, 2007.

“.NEW NAIL$. on that off-brand #louisvuitton jaunt. done by Top HB Nails”

long green nails with a dollar sign

Glittery zebra stripes on a French manicure