On May 26, 2017, Mac DeMarco performed at the Boston Calling Music Festival, showcasing his hit song "For the First Time." At this point in his career, DeMarco had recently released his acclaimed album "This Old Dog" in May 2017, which received widespread praise for its introspective songwriting and a matured sound compared to his earlier works. This performance marked a breakthrough moment as he was rapidly gaining recognition in the indie music scene, with a dedicated fanbase attracted to his laid-back style and authentic stage presence. Notably, the festival representation indicated his successful transition from smaller venues to larger stages, reflecting his growing influence and popularity. DeMarco's unique blend of jangle pop and slacker rock, along with his charismatic performance, has solidified his status as a distinctive voice in contemporary music.