Lorde wore purple lipstick while performing live on Letterman on November 12, 2013.

Natalia Kills at the “Topshop Celebrates the Holidays” event at The Grove in Los Angeles, CA on November 2, 2013.

Demi Lovato at the NYLON December/January 2014 Cover Launch Party Sponsored by McDonald’s at SmashBox Studio Stage 1 in Los Angeles, CA on December 5, 2013.

Dev at the NYLON December/January 2014 Cover Launch Party Sponsored by McDonald’s at SmashBox Studio Stage 1 in Los Angeles, CA on December 5, 2013.

Zendaya Coleman at the 2013 American Music Awards at Nokia Theater L.A. Live on November 24, 2013 in Los Angeles, California

Ariana Grande at the 2013 American Music Awards Press Room at Nokia Theater on November 24, 2013 in Los Angeles, CA

Lorde’s makeup from her “Team” music video, with colors brightened.

Demi Lovato at the “Frozen” World Premiere at El Capitan Theater on November 19, 2013 in Los Angeles, CA

Demi Lovato at the 2013 “X Factor” Top 12 Party at SLS Hotel on November 4, 2013 in Beverly Hills, CA

Iggy Azalea’s makeup at her VEVO Halloween concert in London on October 31, 2013