In mid-1985, 23-year-old Jason Scheff joined the multi-platinum band Chicago, after Peter Cetera had departed the band to continue his solo career. Scheff was noted for his uncanny vocal resemblance to Cetera. His lead vocals were debuted on the 1986 single "25 or 6 to 4," a remake of their 1970 hit, then followed up with "Will You Still Love Me? ». Jason amicably left Chicago in 2016.

Scheff has recorded as a solo artist a CD titled Chauncy in 1996, as well as several duets released only in Japan.

More recently, Scheff toured in late 2019 with Todd Rundgren, Micky Dolenz, Christopher Cross and Joey Molland of Badfinger in celebration of The Beatles White Album on the "It Was Fifty Years Ago Today – A Tribute to the Beatles’ White Album".

« HERE I AM », The long awaited 2nd solo release from Jason Scheff is out November 8th! Purchase at all the usual outlets. For a signed copy go to http://jasonscheff.com/hia

The NEW STUDIO ALBUM by Jean-Jacques Chardeau is the music of his ROCK OPERA “Magical Musical Man”.

The album features a guest appearances from: Brian Auger, 
Jerry Goodman (Mahavishnu Orchestra), 
Danny Seraphine & Jason Scheff (Chicago)
, John Helliwell (Supertramp)
, Martin Barre (Jethro Tull)
, Mark Andes (Spirit)
, John McFee (Doobie Brothers)
, Michael Sadler (Saga)
, Alex Ligertwood (Santana), 
Christian & Francis Décamps (Ange).