I Don't Know How to Love Him reaching No. 47 and Clark's No. 42. Tim Rice produced several additional tracks for Elliman to complete her debut album. Elliman performed "I Don't Know How to Love Him" when she played the Mary Magdalene role first in the Broadway production of "Jesus Christ Superstar", which opened at the Mark Hellinger Theatre 12 October 1971, and then in the movie version, her respective renderings being featured on both the Broadway cast album and the soundtrack album for the film. Her version of "I Don't Know How to Love Him" from the movie soundtrack gave Elliman a hit in Italy (#21)
How Will I Know the entire run of her Greatest Love Tour (1986), Moment of Truth World Tour (1987–1988), Feels So Right Japan Tour (1990), I'm Your Baby Tonight World Tour (1991), The Bodyguard World Tour (1993–1994), and My Love Is Your Love World Tour (1999). She also recently performed the song on her Nothing but Love World Tour (2009–2010). Apart from the concert tour performances, Houston has performed the song on various other occasions like the Third MTV Video Music Awards (1986), where she sang "How Will I Know" and "Greatest Love of All", Thirteenth Annual American Music Awards (1986), and 1987 BRIT