Overview

• 'Guess' marks Charli XCX's first UK No. 1 as a lead artist since 2013.
• Billie Eilish scores her third UK No. 1 single with this collaboration.
• The remix of 'Guess' was released on August 1 with a music video.
• Charli XCX is set for her biggest UK headline tour later this year.
• The song's success breaks a streak of American and Irish acts topping the UK chart.