Blackpink set a record for first-week sales for a K-pop girl group with its third EP, “Deadline,” selling more than 1.77 million copies, YG Entertainment said Friday, citing a local tally. The newest set from the group surpassed 1.46 million copies sold on the day of its release, smashing through the first-day and weeklong marks for a K-pop girl group previously held by Aespa for its third EP, “My World,” released nearly three years ago in May 2023. The five-track mini album debuted atop iTunes