Global billboards displaying “HELLO สวัสดีค่ะ” sparked intense speculation among fans, prompting a worldwide guessing game about the artist behind the campaign. The mystery was finally solved with the reveal of BLACKPINK’s LISA as the artist, announcing her upcoming solo project titled ‘SaWaDiKa’. Billboards were strategically placed in major international cities including Bangkok, New York, Los Angeles, and Mexico City. A corresponding website featuring the word “Hello” in various languages accompanied the physical advertisements, further fueling anticipation. The campaign effectively generated buzz and excitement for LISA’s new music. This marks a significant step in LISA’s solo career following previous successful releases. The reveal confirms LISA is expanding her global presence and musical exploration.