Singers Firetruck, Park Nam Jung, Kang Soo Ji, and Kim Wan Sun will be appearing on SBS's 'Running Man'.

The upcoming episode of 'Running Man' was put together as a '8090 singers' special. So the stars of the 1980-90s music scene Firetruck, Park Nam Jung, Kang Soo Ji, and Kim Wan Sun appeared as guests and competed missions with the 'Running Man' members.

Kim Jong Kook joined the singers to form a team and in a surprise move, KARA's Hara appeared to join the 'Running Man' team.

Catch it when it airs on December 2nd!