Guess (song)

"Guess" is a song by British singer Charli XCX taken from Brat and It's the Same but There's Three More Songs So It's Not, the deluxe edition of her sixth studio album, Brat (2024). A remix version featuring American singer-songwriter Billie Eilish was released on 1 August 2024 as a single from Brat and It's Completely Different but Also Still Brat, the remix album of Brat. Released alongside a music video from which 10,000 items of underwear were donated to I Support the Girls, the remix marked the first studio collaboration by Eilish in several years and was the fourth remix from Brat. "Guess" received positive reviews from critics and entered the top of the UK Singles Chart, and at number twelve on the Billboard Hot 100. It also topped the Billboard Hot Dance/Electronic Songs chart, as well as the charts in Australia, Ireland, Lithuania, and New Zealand, and peaked within the top ten of the charts in Canada, Norway, and Sweden. The song became Charli's first UK number one as a solo artist. The remix received a nomination for Best Pop Duo/Group Performance at the 67th Annual Grammy Awards and won the 2025 Brit Award for Song of the Year.