Estonian duo, taking its name from his two members: Juss Tamm (vocals and keyboards) and Mihkel Mattisen (vocals and keyboards). They came together in 1994, and released seven albums between 1994 and 2005.

One of the albums was Ootus (1996), which featured an Estonian cover version of Kim Wilde’s Million Miles Away, entitled Kui Mõistad Mind (‘If you understand me’).

Jam disbanded in 2005. According to Mihkel Mattisen, ‘I have been in Jam for too long, I want to do something else with my life’.