Celebrities Switch into their 2nd Outfits for the Met Gala After Parties on May 7, 2019. Pictured: Hailey Bieber. (Photo by DIGGZY/Splash News and Pictures)

A runner competes in the Great Wall Marathon at the Huangyaguan Great Wall outside Beijing, China, May 18, 2019. (Photo by Thomas Peter/Reuters)

American actress and singer Victoria Justice thanks Alabama for “the good times” early May 2022. (Photo by victoriajustice/Instagram)

Valik Vladimirovich plays dressed as a soldier in Stoyanka outskirts Kyiv, Ukraine, Monday, May 30, 2022. (Photo by Natacha Pisarenko/AP Photo)

With the world feeling more distant than ever, photographers were this year called on to translate their vision of the new humanity into images seen through their own eyes. Here: May. (Photo by Ami Vitale/2021 Lavazza Calendar)

American actress Joey King in the second decade of May 2024 shares a silly selfie sipping a cocktail. (Photo by joeyking/Instagram)

In this Wednesday, May 23, 2012 photograph, a young deer and a cat share a moment in Feench village near Jodhpur, Rajasthan state, India. (Photo by AP Photo)

Residents wearing masks rest in the shade near a graffiti of a dragon, Friday, May 27, 2022, in Beijing. (Photo by Ng Han Guan/AP Photo)