There are two bands with such name at least.
'Okay' is a band from Fremont, California and is the side project of Dilute's Marty Anderson, who is the only fully permanent member of the band.
A Western German, Frankfrurt am Main originated four guys' band, sometimes falsely spelled as O.K. It was formed in 1986 (?), playing in Synth-Pop, Eurodance, New Beat, Euro House (later) style. 1st their song and single OKAY! they released in 1987, that had reached…
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