Costume actors to wait before the show at “Chian Tourism Day” Inauguration Ceremony in Ninghai Zhejiang Province on May 19, 2011 in Ninghai, China. Various activities in local famous historic sites are being held to mark the day “China Tourism Day” on May 19. (Photo by Lintao Zhang/Getty Images)

Nikki Reed is seen shopping at American Rag in Los Angeles, CA., on May 14, 2014. (Photo by Bauergriffin.com)

A subway worker walks away after a train departed the station in central Pyongyang, North Korea May 7, 2016. (Photo by Damir Sagolj/Reuters)

American singer Dove Cameron in the last decade of May 2023 takes a moody selfie to talk about her “healing”. (Photo by dovecameron/Instagram)

American model and television personality Amelia Gray Hamlin at a Met Gala 2024 afterparty on May 6, 2024. (Photo by Splash News and Pictures)

Icelandic horses play on a meadow in Wehrheim near Frankfurt, Germany, as the sun rises on Tuesday, May 28, 2024. (Photo by Michael Probst/AP Photo)

A protester uses molotov cocktails against riot police during May Day protests on May 1, 2010 in Athens, Greece. (Photo by Milos Bicanski /Getty Images)

A rainbow is seen near a cloud south of Corvallis, Ore., Monday, May 19, 2014. (Photo by Andy Cripe/AP Photo/The Corvallis Gazette-Times)