Xavier Rudd's "A Fourth World" appears on his 2005 live recording, "Live At The Grid," capturing the energy of his performance style. The track exemplifies Rudd's signature blend of acoustic guitar, rhythmic percussion, and socially conscious lyrics that address themes of environmental degradation and global inequality. Often associated with his broader body of work from the mid-2000s, the song reflects a period where Rudd focused on delivering urgent messages through accessible pop-rock arrangements. As a staple of his live sets, the recording showcases his ability to engage audiences while maintaining the melodic hooks that define his career. The song stands as a testament to his commitment to using music as a platform for advocacy, resonating with listeners who appreciate his unique fusion of folk and rock influences.