The BLACKPINK member performed a 17-track set at Open'er Festival in Gdynia on 4 July, introducing three new tracks: the dance-pop breakup narrative 'Lock It Down' (earlier teased at Governors Ball), the heartbreak-focused 'Heaven', and the summer-inspired ballad 'Less Than A Lover'. JENNIE told the crowd she would share the full project soon, rounding out an hour-long performance centred on her 2025 solo album Ruby and recent collaborations.

The appearance comes during a remarkable commercial moment for JENNIE's solo career. Her Tame Impala partnership 'Dracula' became the first song to reach number one on Billboard's Pop Airplay chart for both artists, holding a top-10 position on the Hot 100 for 37 consecutive weeks by mid-June. Ruby's launch at number 7 on the Billboard 200 and subsequent streaming accumulation of over 3 billion plays on Spotify have established her as the highest-charting female K-pop soloist in history, with six Hot 100 entries—a record within that category.