Dancers from “LA Dance Project” perform, wearing a mask, during the drive-in show “Solo at Dusk” in Los Angeles, California, on October 13, 2020, amid the Coronavirus pandemic. (Photo by Valerie Macon/AFP Photo)

Evangelia Platanioti of Greece competes in the Solo Technical Routine at the Glasgow 2018 European Synchronised Swimming Championships, Glasgow, Britain, 06 August 2018. (Photo by Neil Hall/EPA/EFE)

American model and socialite Hailey Bieber in the first decade of August 2025 rolls solo onto a flight with bags of fries and other treats from In-N-Out Burger. (Photo by Hailey Bieber/Instagram)

Linda Cerruti of Italy competes in the Synchronized Swimming Solo Tech preliminary round during Day Two of the 14th FINA World Championships at the Oriental Sports Center on July 17, 2011 in Shanghai, China. (Photo by Ezra Shaw/Getty Images)

Ginger Stanley performs a grand jete during her solo underwater ballet at Silver Springs, Florida. (Photo by Bruce Mozert/Three Lions/Getty Images). Circa 1956

Javanese people pray before rituals night carnival “1st Suro” (Javanese calender) during Islamic New Year celebrations at Kasunanan Palace on November 14, 2012 in Solo City, Central Java, Indonesia. Javanese will celebrate the national holiday with ceremonies and rituals marking the 1434th Islamic New Year's Eve or “1st Suro”. The parade started from Keraton Kasunanan and is headed by a group of albino buffaloes, known as Kebo Bule. Local people believe that the parade of Heirlooms and Kebo Bule will bring them a better life. (Photo by Ulet Ifansasti)

A tattoo showing the Olympic rings is pictured on the leg of Mexico's Joana Jimenez Garcia during the Women Solo Technical Preliminaries, at the FINA World Championships, in Budapest, Hungary on June 17, 2022. (Photo by Marton Monus/Reuters)

Anita Alvarez of the U.S. receives medical attention during the women's solo free final during FINA World Championships at Alfred Hajos Swimming Complex in Budapest, Hungary on June 22, 2022. (Photo by Lisa Leutner/Reuters)