In 2003, the Red Hot Chili Peppers performed a memorable concert at Slane Castle, solidifying their status as one of the prominent rock bands of the era. At this point in their career, they had recently released the album "By the Way" in July 2002, which showcased a more melodic and introspective sound compared to their earlier works. The band was enjoying significant commercial success, driven by hit singles like "Can't Stop" and "The Zephyr Song," both of which were featured in their live set at Slane. This performance marked a critical moment for the band, as they were transitioning into a new phase of their musical journey while still holding onto the energetic funk rock style that initially garnered them fame. The concert further highlighted their dynamic stage presence and deep connection with their audience, reflecting their evolution as artists during this period.