Jeffrey Mandelbaum made his debut at the Metropolitan Opera in The Enchanted Island singing the role of Ferdinand in a series of performances alongside Joyce DiDonato and Plácido Domingo, under the baton of William Christie. He has been hailed as a "first-class countertenor" by the Washington Post, and is known for for his powerful, elegant voice, and dynamic stage presence. He returned to the MET for Ades’ The Tempest, and for the revival of The Enchanted Island. He made his Alice Tully Hall debut singing Bach’s Magnificat with the American Classical Orchestra, followed by Bach’s Christmas Oratorio with the Riverside Choral Society.

Regarding his debut at Virginia Opera in Agrippina, Tim Smith states in Opera News, “Jeffrey Mandelbaum, with a sweet sound, was highly satisfying… [and] brought considerable flair to his singing and characterization.” He was engaged by New York City Opera for Flavio, Ulisse, and Hansel and Gretel, and performed Giulio Cesare in two productions with Opera Theater of Connecticut, singing Tolomeo, as well as with One World Symphony, in the title role. He triumphed as Farnace in the New York premiere of Mitridate with Little Opera Theater of New York. Allan Kozinn states in the New York Times, “Jeffrey Mandelbaum gave an appealingly sensitive portrayal of Ottone,” in Opera Omnia’s Poppea. He reprised Ottone this summer with Dell’Arte Opera, where he later sang the leading role of Endimione in Cavalli’s La Calisto.

A sought after concert performer, he has sung with Orchestra of Saint Luke’s, Amor Artis, Canticum Novum Singers, Westchester Oratorio Society, Norwalk Symphony, Greater Bridgeport Symphony, Connecticut Master Chorale, Mendelssohn Choir of Connecticut, Vermont Mozart Festival, and others. He is in demand as a soloist for the oratorios of Handel and the choral works of Bach. He has made calling cards of the “tenor” solo in Orff’s Carmina Burana and the “boy” solo in Bernstein’s Chichester Psalms, in which he made his Carnegie Hall debut last Spring with the New England Symphonic Ensemble. He is a founding member of the new chamber ensemble, Baroquelyn, which has a concert series in Park Slope. He sings the role of David in Handel’s Saul this Winter with Canterbury Choral Society.

In addition to performing baroque repertoire, he is also an experienced interpreter of contemporary opera, including DeChiera’s Cyrano De Bergerac with Opera Pacific; Monk’s Quarry with Spoleto Festival USA, Glass’s Galileo Galilei at Brooklyn Academy of Music, Hause’s Man: Biology Of A Fall at Kumble Theater [NYC], and two productions of Quincey’s Home And The River with Encompass New Opera Theatre, with whom he also premiered Quincey's Tale Of A Tell-Tale Heart, the leading role of which was written specifically for him. He will record the song cycle Domination of Darkness, by Mohammed Fairouz, this Spring.

Mr. Mandelbaum is a winner of the 2003 Metropolitan Opera National Council Auditions, New York Districts, and has sung numerous recitals in venues throughout NYC and Tuscany. He received a B.A. with Honors in Interdisciplinary Performance from Oberlin College, and a Master of Music degree in Historical Performance-Voice from the Mannes College of Music. He coached in baroque style with Drew Minter and Julianne Baird, and studies vocal technique and artistry with Linda Monssen.