Charli XCX wore red lipstick to Ditch Fridays at the Palms Pool & Dayclub in Las Vegas, NV on June 6, 2014

Charli XCX in Concert at Q102’s Performance Theatre in Bala Cynwyd, PA on October 03, 2014

Kesha at the “Planes: Fire & Rescue” Los Angeles Premiere at El Capitan Theatre in Hollywood, CA on July 15, 2014

Taylor Swift wore black eyeliner and red lipstick at the iHeartRadio Music Festival Las Vegas 2014 at the MGM Grand Garden Arena in Las Vegas, NV on September 19, 2014

Avril Lavigne at her 30th Birthday Celebration at The Bank Nightclub in Las Vegas on September 27, 2014

G. Hannelius at the “Muppets Most Wanted” Los Angeles Premiere at El Capitan Theatre in Hollywood, CA on March 11, 2014

Natalia Kills wore taupe shadow above her eyes with black below her eyes with a burgundy lipstick

Amira McCarthy paired a smoky eye with nude lipstick for Neon Jungle’s performance at MTV Crashes. She added jewels below her eyes and a black stripe down the middle of her lips for extra drama.

Hayley Williams wore black eyeliner with peach eyeshadow at the iHeartRadio Music Festival in Las Vegas on September 20, 2014. She filled in her eyebrows with an orange-brown to match her hair.

Taylor Momsen’s brown raccoon-style eyeshadow at the iHeartRadio Music Festival at the MGM Grand Garden Arena in Las Vegas, NV on September 20, 2014.