"San Diego" is centered on the band's original hometown and on a deeper level, relationships with the group's former bandmate, Tom DeLonge. According to Feldmann, it was a song Hoppus did not want to write. "There's clearly a lot of feelings involved with having a best friend who is not in your band anymore," Feldmann said. For him, the song "acts as a bittersweet homage, a goodbye to this city ... while acknowledging the interpersonal relationships within the band." Stump also collaborated in the writing process for "San Diego". "The Only Thing That Matters" originally began as a cowpunk-infused number until Hoppus re-wrote it. "California" is about "giving credit to how lucky we are to have lived here and grown up" in California. "Brohemian Rhapsody"—its title a pun on Queen's "Bohemian Rhapsody"—is another joke song with the sole lyric "There's something about you I can't quite put my finger in." Hoppus and Feldmann wrote and recorded the song in nine minutes.
