Mark Allan Hoppus is an American musician, songwriter and producer who is known as the bassist and co-lead vocalist for the rock band Blink-182, the only member to appear on each album. He is also part of the pop rock duo Simple Creatures.

Blink-182 is an American rock band formed in Poway, California, in 1992. Their current and best-known line-up consists of bassist and vocalist Mark Hoppus, guitarist and vocalist Tom DeLonge, and drummer Travis Barker. Though their sound has diversified throughout their career, their musical style, described as pop-punk, blends catchy pop melodies with fast-paced punk rock. Their lyrics primarily focus on relationships, adolescent frustration, and maturity—or lack thereof. The group emerged from a suburban, Southern California skate punk scene and first gained notoriety for high-energy live shows and irreverent humour.