There 3 artist's/Groups with this name. 1). A Seattle based hard rock/heavy metal band formed in 1977
Brad Sinsel formed TKO in 1977 with Rick Pierce. Two years later, TKO released its debut LP, Let It Roll, and by 1981, the band was headlining shows at Seattle and touring as the opening act for AC/DC, Van Halen, Heart, The Kinks and Cheap Trick. TKO went through several personnel changes before recording its best - known album In Your Face, in 1984, and its final album, Below the Belt, in 1986.