Whitney Houston made a surprise guest appearance at a benefit concert at Carnegie Hall for the Rainforest Foundation in 1994. Whitney performed three songs during the concert — “I Will Always Love You,” Stevie Wonder’s “If It’s Magic,” and “La Donna e Mobile” from Giuseppe Verdi’s Rigoletto, briefly revealing a stunning, operatic voice. Her performances were not professionally recorded by the Foundation, but were captured by a fan in the audience: