Mika Kristian Karppinen (born 8 February 1971), better known as Gas Lipstick, is a Swedish-Finnish musician, best known as the previous drummer of the Finnish gothic rock band HIM.

Born in Eskilstuna, Sweden to Finnish parents, Karppinen moved to Finland with his family at age 13.

Before joining HIM, he was also a member of Kyyria, which included Santeri Kallio and Niclas Etelävuori from the Finnish band Amorphis and singer Ville Tuomi of Suburban Tribe.

He sang and played guitar in a thrash metal band called Dementia which featured guitarist Roope Latvala of Children of Bodom.

Karppinen married Croatian photographer and influencer Natali at Temppeliaukio church in Helsinki on 30 August 2008.