The couple began officially dating in September 2011, after having been friends and casually dating in the 1990s.
Sources told TMZ that Schon, who is a member of the band Journey, proposed to Salahi on Sunday night (October 14).
Journey were reportedly playing a benefit concert for the Johns Hopkins Kimmel Cancer Centre when Schon popped the question, asking Salahi to join him on stage.
According to eyewitnesses, Salahi began jumping up and down and crying, while the band played their ballad 'Faithful'.
Salahi, who is a former star of Bravo's The Real Housewives of DC, officially divorced former husband Tareq Salahi in August.
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