US TV
Rex Features
According to E! News, the former boybander and reality star will play himself in an upcoming episode of the CW show.
Insiders have revealed that Lachey will arrive after Haley (Bethany Joy Galeotti) writes a song for his new album but is then reluctant to sell it.
Lachey is most famous for appearing in MTV's Newlyweds, which documented his marriage to ex-wife Jessica Simpson.
His latest album, Coming Up For Air, is scheduled for release this spring and features a duet with new American Idol judge Kara DioGuardi.
More: Nick Lachey, US TV
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