Adam Lopez Costa (born 26 August 1975), billed as Adam Lopez, is an Australian pop musician, vocal coach, and session vocalist.
He is noted for his ability to produce extremely high notes in his whistle register and for his extensive 6 octave vocal range.
From 2008 to 2018 he was a Guinness World Record holder for singing the highest note (by a male) and a half step below the E in the 8th octave (E?8), or a tone and a semitone above the highest note on a standard 88-key piano.
He currently heads the vocal faculty at Sheldon College's Australian School of the Arts.