@littledessiirre: Charli xcx & Billie Eilish — “Guess” (2024). Released as a remix of Charli xcx’s viral track from BRAT, “Guess” brought together two of pop’s biggest stars. Billie Eilish’s surprise verse gave the song new life, while the playful chemistry between the pair helped make it one of the standout collaborations of the BRAT era. The music video featured thousands of pieces of donated underwear, all of which were later recycled or donated to I Support the Girls, a nonprofit that provides bras and menstrual products to people in need. #charlixcx #billieeilish #music #musicvideo #viral