Hikaru Utada
Hirano has recorded with Dr. Dre on "2001", Fleetwood Mac, Whitney Houston, The Temptations, Hikaru Utada, Stevie Nicks, LeAnn Rimes, Josh Groban, Chromeo, Ziggy Marley, Emmanuel Jal, Nelly Furtado and Lionel Richie, in addition to working on major motion picture soundtracks.