Thirty Seconds to Mars discography is an American rock band which is a broad genre of popular music that originated as "rock and roll" in the United States in the late 1940s and early 1950s.
Stephen Thomas Erlewine of AllMusic acknowledged the band's progression, referring to the overall style of the record as a mixture of synth rock, heavy metal, and progressive rock. Rock and roll (often written as rock & roll, rock 'n' roll, or rock 'n roll) is a genre of popular music that evolved in the United States during the late 1940s and early 1950s. From the mid-1960s on, as "rock and roll" was rebranded as "rock," later dance genres followed, leading to funk, disco, house, techno, and hip hop. 
