Once a four-piece alt-rock group, today Panic! At the Disco consists exclusively of frontman and multi-instrumentalist Brendon Urie. While the number of Panic!’s members may have shrunk to one, the sound is broader than ever. Classified as every genre from vaudeville to psychedelic, Panic! tries its hand at power pop with a dash of Frank Sinatra on its latest album, Death of a Bachelor. Peaking at number one on the U.S. Billboard 200, Panic!’s fifth record is chock-full of playful radio singles such as the pop anthem “Victorious” and gospel-heavy “Hallelujah.” But where Panic! really shines is on the album’s throwback jazz tracks, such as “Death of a Bachelor” and “Impossible Year,” where singer Urie showcases his vocal prowess alongside Sinatra-esque horns and heart-wrenching piano melodies.