John Kay is the stage name of Joachim Krauledat (born 12 April 1944, Tilsit, East Prussia, Germany, now Sovetsk, Kaliningrad Oblast, Russia) a German-born Canadian singer, songwriter and guitarist known as the front man of Steppenwolf.

In the Evacuation of East Prussia in early 1945, in harsh winter conditions, his mother first had to flee with the baby boy from the advancing Soviet troops. In 1948, the two also fled from Arnstadt in the East German Soviet occupation zone to resettle in Hanover, West Germany (as recounted in his song "Renegade" on the album Steppenwolf Seven). Located in the British occupation zone, teen aged Joachim, suffering from eyesight problems, listened to music broadcast by the British Forces Broadcasting Service before his family moved to Canada in 1958.

In 1965, he joined a blues rock and folk music group named The Sparrows (later known as The Sparrow), which had moderate success in Canada before moving to California, augmenting its line-up and changing its name to Steppenwolf in 1967. With music that pioneered hard rock and heavy metal, Steppenwolf had international success with songs such as "Born to Be Wild", "Magic Carpet Ride", "Monster", "The Pusher", and "Rock Me". This was multiplied by the use of "Born to Be Wild" and "The Pusher" in the 1969 movie Easy Rider.

He recorded both as a solo artist and with Steppenwolf during the late 1970s. As of 2017, John Kay continues to perform with Steppenwolf.

Steppenwolf was a highly influential American-Canadian hard rock band, based in Los Angeles, CA from 1968-1976. Worldwide record sales of the band's releases are over 25 million copies. The band has eight gold albums and twelve Billboard Hot 100 singles, of which six were Top 40 hits, including three Top 10.