Key added, "...we have to be careful, we have to try and write songs [in the style of the ones] we wrote before. We have to make a conscious effort not to think about the fact that we went from being a nothing band ... to having a bunch of hit singles in like, one year." Printz Board of The Black Eyed Peas collaborated with Yellowcard on the song "Two Weeks from Twenty" where he played a trumpet solo. The song, "How I Go", features a duet with the Chicks' lead vocalist Natalie Maines, and features a twenty-five piece orchestra, which was conducted by violinist Sean Mackin. According to Peter Mosely, the band liked the Chicks' and even thought of collaborating with Maines on Ocean Avenue for the song "View from Heaven". Mosely also revealed that the band approached Maines about singing on "How I Go"; "The original plan was just for her to sing back-up (on the song). [But] it ended up turning into a duet." He also added that Maines took a demo of the song and returned to the studio, Sunset Sound, where the band were working, in addition to the Chicks working on their album, with lyrics and vocals of her own. Mackin also composed an entire string section and conducted an orchestra in the album. In an interview with Daily Nexus in June 2006, Mackin revealed that the conducting was the easy part and that the composing part was much harder. In this interview, Mackin also commented, "composing was getting so frustrating since I wasn’t writing as fast as my mind was thinking, so going back I wanted to make sure that each of my arrangements for this album and the 12 different songs were completely different". Lyrical content Lights and Sounds primarily focuses on the band coping with the success they were enduring when writing songs for the album. The album also goes with what Key described as when he was preoccupied with making Lights and Sounds. Key said that one of the common themes that were written in the album was the band's hatred in living in Los Angeles. Key said that the songs have "lost that adolescent bounciness -- they've come into adulthood a bit". In an interview with Rolling Stone magazine, Key revealed that during the time he and Mosely spent in New York, he said it "brought out some darker