What is no tell lover by chicago?

No Tell Lover is a song by the American rock band Chicago. It was released in 1980 as the lead single from their album Chicago XIV. The song was written by band member Peter Cetera and David Foster, and produced by Tom Dowd.

No Tell Lover is a soft rock ballad that features Cetera's signature soaring vocals and a catchy chorus. The lyrics tell the story of a secret love affair that is kept hidden from the world, with the refrain "no tell lover, no tell friend". The song became a hit for Chicago, peaking at #14 on the Billboard Hot 100 chart, and it remains a fan favorite and a staple of their live shows.