Jennie has been announced as the Saturday headline act of this year’s Open’er festival. READ MORE: Jennie – ‘Ruby’ review: a bold, self-assured debut that redefines her narrative The annual event takes place from July 1-4 in Gdynia, Poland, and this year’s lineup includes The Cure , Calvin Harris , Nick Cave & The Bad Seeds , Florence + The Machine , The xx , David Byrne and more. Visit here for tickets. K-pop icon Jennie will headline the Orange Main Stage on July 4, and was announced alongside new additions Viagra Boys (July 1, Alter Stage) and Luvcat (July 4, Alter Stage). It’s the latest in a busy schedule for the BLACKPINK member, who is also in the lineup for July’s Mad Cool Festival , Lollapalooza , and The Governor’s Ball in June . A press release for the festival read: “Jennie Kim is one of the most influential female artists of the era.…