LONDON, ENGLAND - JULY 4: A man dons an elaborate cowboy shirt and hat as he watches a band at the Country Music Festival at Tooting Common on July 4, 2026 in London, England. The United States is celebrating its Semiquincentennial today, marking exactly 250 years since the adoption of the Declaration of Independence in 1776. This historic milestone, often referred to as America's 250th birthday, has sparked grand celebrations, national events, and international historical exhibitions across both the United States and the United Kingdom. (Photo by Denise Laura Baker/Getty Images)