Lili Reinhart at the 2017 American Music Awards at Microsoft Theater, 777 Chick Hearn Court in Los Angeles, CA on November 19, 2017.

Camila Mendes at the 2017 American Music Awards at Microsoft Theater, 777 Chick Hearn Court in Los Angeles, CA on November 19, 2017.

Demi Lovato arrives at Wembley ahead of the England v Brazil football match in London, United Kingdom on Tuesday November 14, 2017.

Noah Cyrus at the Variety’s Inaugural Hitmakers Luncheon at Sunset Tower, 8358 Sunset Boulevard in Los Angeles, CA on November 18, 2017.

Zara Larsson at the MTV Europe Music Awards at the SSE Arena Wembley in London, United Kingdom on Sunday November 12, 2017.

Rita Ora at Key 103 Live event held at the Manchester Arena in Manchester, United Kingdom on Thursday November 9, 2017.

Selena Gomez at the 2017 American Music Awards at Microsoft Theater, 777 Chick Hearn Court in Los Angeles, CA on November 19, 2017.

Cindy Kimberly at the MTV Europe Music Awards at the SSE Arena Wembley in London, United Kingdom on Sunday November 12, 2017.

Selena Gomez at the 2017 American Music Awards at the Microsoft Theater in Los Angeles, California on Sunday November 19, 2017.

Gigi Hadid at the 2017 Glamour Women of The Year Awards at Kings Theatre in New York City, New York on Monday November 13, 2017.