Exo performed at the closing ceremony of the 2018 Winter Olympics in Pyeongchang on February 25, serving as representatives of K-pop along with CL. Prior to the performance, Baekhyun sang the national anthem at the opening ceremony of the International Olympic Committee general assembly on February 5, and Exo performed at the official D-100 Concert in late 2017, which marked 100 days until the start of the Winter Olympics. The band's performance drew widespread global media attention and praise. The Russian two time Olympic silver medalist and figure skating world champion Evgenia Medvedeva also drew media attention for her support of Exo. In April 2018, the Korean Mint Corporation released official commemorative medals for Exo, honoring the group for their contribution to the global spread of Korean culture. The nine medals, each commemorating one of the group's members, were unveiled at a ceremony in Seoul. In October 2018, Lay debuted in the U.S. with his third solo album "Namanana". The album topped the charts of "Billboard"s World Albums and Independent Albums, and placed 21st on the "Billboard" 200, making Lay the highest-ranked Mandopop artist on the chart.