This tenor made his debut at the age of ten with the Petits Chanteurs de Sainte-Croix de Neuilly (the Little Singers of St. Croix of Neuilly). Lamy then went on to sing with the Choeur Grégorien de Paris, the Chapelle Royale in 1982, and then the Ensemble Vocal Européen directed by Philippe Herreweghe. He appears with them still at La Fenice, Akadêmia, Ricercar, and at the Centre Baroque de Versailles. Lamy also sings with the ancient music ensembles Gilles Binchois and A Sei Voci. While he primarily sings arias, Lieder, and in oratorios, Lamy frequently appears in operas and has sung in Haydn's Armida, Darius Milhaud's Pauvre Matelot, Tippett's The Knot Garden, and Monteverdi's Orfeo, and in Jacques Castérède's Sainte-Foy de Conques. He has participated in numerous recordings, including songs by Mozart, the Dichterliebe (Loves of a Poet) by Robert Schumann, and on 1997's Christus Rex: A Tenor's Tribute to Gregorian Chant, which was awarded the prestigious Diapason d'Or.