I got a question for you: Scar is a fictional character who appears in Walt Disney Pictures' 32nd animated feature film The Lion King (1994). The character is voiced by English actor Jeremy Irons, while his singing voice is provided by both Irons and American actor Jim Cummings, the latter of whom was hired to replace Irons when the former damaged his singing voice. Subsequently, Scar makes minor appearances in the film's sequel The Lion King II: Simba's Pride (1998) and The Lion King 112 (2004), in both of which he is voiced entirely by Cummings, as well as appearing in the Broadway musical adaptation of the film, in which the role of Scar was originated by American actor John Vickery.

Answer this question: who is the voice of scar on lion king?
Let's think first:
To answer the above question, the relevant sentence is: The character is voiced by English actor Jeremy Irons, while his singing voice is provided by both Irons and American actor Jim Cummings, the latter of whom was hired to replace Irons when the former damaged his singing voice.
Therefore, the answer is Jeremy Irons.