What type of music style is 5sos?

5 Seconds of Summer (5SOS) primarily blends pop rock with elements of pop-punk and alternative rock. Their sound features catchy melodies, upbeat tempos, and guitar-driven instrumentation, often drawing comparisons to bands like Blink-182 and Green Day. Over time, they've also incorporated influences from pop and electronic music into their work, showcasing their versatility as artists.