In August 2003, during the era of their album "By the Way," the Red Hot Chili Peppers performed at Slane Castle in Ireland. "By the Way," released in July 2002, marked a significant evolution in their sound, blending elements of rock, funk, and melodic pop. The concert showcased tracks from this album, including the title song "By the Way" and "Scar Tissue," which highlights the band's ability to fuse intricate guitar work with introspective lyrics. Notably, this period in their career followed their highly successful album "Californication," which had established them as a mainstream rock powerhouse. The Slane Castle performance reflects the band's dynamic stage presence and strong fan connection, indicative of their growth as artists in the early 2000s, as they were transitioning to a more mature sound while still embracing their energetic roots.