The Beatles' Sgt. Pepper's Lonely Hearts Club Band

In case the marching band costumes in the video for "Nine in the Afternoon" didn't give it away, the sounds on Panic's second disc draw heavily on the harmonies, horns and psychedelic narrative concepts that are staples on Sgt. Pepper. "In the past couple of years we were listening to stuff that was a little bit different than what we were on the first record, and the Beatles would be an example of that," drummer Spencer Smith explained to Rolling Stone.