Group 1 - Taylor Swift announced her engagement to Travis Kelce, which quickly influenced the capital markets [1] - The engagement announcement post received over 16 million likes and 600,000 shares within hours, becoming a social media sensation [1] - Following the news, Signet Jewelers' stock rose by 3.12%, indicating a potential surge in demand for engagement rings among Swift's fanbase [1] Group 2 - Swift's influence extends beyond the music industry, with her social media activity capable of impacting stock market trends [2] - The blurring lines between pop culture and financial markets are highlighted by this engagement event [2] - Swift's previous global tour, "Eras Tour," significantly boosted local economies in concert cities, showcasing her economic impact [1]