As Johnny Keyser, he was first featured on American Idol in the eleventh season, in which he made it to the Las Vegas Rounds.

In between seasons, he released his seven-tracked debut independent EP, From Where I Stand (2012).

[4] His single "If We Never Met" came to the attention of Elvis Duran, who got K booked to perform the song on Today.

[6] His follow-up single to "If We Never Met" was titled "Wasted Summer".

In September of the same year, his single "If We Never Met" was certified platinum by RIAA.