The Cabaret star appeared in person at the ceremony in London this week to accept her award, where she praised the charity for their important work across the country.
"What a great honour it is to receive this prestigious award," Minnelli before the event. "The work of Nordoff Robbins helps so many people, and I am truly delighted to be invited to the Silver Clef Awards this year."
Minnelli said that she was thrilled with the award because she thinks that Nordoff Robbins is an important charity that needs to be supported.
"What I wanted to say is I believe in this project more than anything I've heard in the last 20 years because I do believe in the healing power of music and even lyrics," Minnelli said during her acceptance speech, according to BBC News. "Sometimes a lyric can completely change your mind, which is what this is about."
Minnelli was presented with the 'Icon Award' by her longtime friend, British chatshow host Graham Norton.
The singer was forced to cancel several music concerts last year after being diagnosed with bronchial pneumonia, although she has since fully recovered.
Others who were honoured at the Silver Clef Awards this year include Annie Lennox, Status Quo and Sir Paul McCartney.
Watch Liza Minnelli's iconic performance in Cabaret below: