Erica Cornejo trained at the Arts Institute of the Colon Theatre in Buenos Aires. At age 14, she won a gold medal at the Second International Ballet Competition in Argentina and was immediately invited to join Julio Bocca's Ballet Argentino. She was featured as Bocca's partner in many principal roles. Cornejo joined American Ballet Theatre's Studio Company in 1998 and later that year became a member of ABT's corps de ballet. She was promoted to soloist in 2002.
In 2006 Erica joined Boston Ballet as a Principal Dancer. Cornejo had been honored as a Messenger of Peace by Unesco. She also received a medal of honor from the U.S. chapter of Institute Belgraniano as one of Argentina's leading dancers. Cornejo has been featured on the cover of Pointe Magazine and Dance Magazine. In 1998 Erica and her brother, Herman Cornejo, were invited as guest artists to dance at a special tribute held at the Metropolitan Opera House in New York honoring both President Bill Clinton and Argentinean President Carlos Menem. In 2005, Erica danced for President George Bush at the White House.
Cornejo has created leading roles in Within You Without You: A Tribute to George Harrison and Lar Lubovitch's ". . .smile with my heart". She has performed with Corella Ballet in Spain and worldwide at festivals and ballet galas in Italy, Spain, Greece, Egypt, Israel, Portugal, Japan, Korea, Dominican Republic, Guatemala, Peru, Colombia, Ecuador, Uruguay, Brazil, Gala des Étoiles du XXI Siècle in Paris and Canada, and Gala du Diamonds in Moscow.
Her diverse repertoire includes Anna-Marie Holme’s Corsaire, Agnes de Mille’s Rodeo, Paul Taylor’s Black Tuesday and Airs, Mark Morris’s Gong, Clark Tippet’s Bruch Violin Concerto, Mikko Nissinen's Swan Lake and The Nutcracker, John Cranko's Romeo and Juliet, Rudolf Nureyev's Don Quixote, August Bournonville's La Sylphide, Maina Gielgud's Giselle, Val Caniparoli's Sonata for Two Pianos and Percussion and Lady of the Camile, George Balanchine's Emeralds, Donizetti Variation, Apollo, Coppélia, Theme and Variations, Ballo della Regina and Four Temperament, Michel Fokine's Le Spectre de la Rose, Florence Clerc's Bayadère and Les Sylphide, James Kudelka's Cinderella, Twyla Tharp's In the Upper Room, Antony Tudor’s Dark Elegies, William Forsythe's The Second Detail and The Vertiginous Thrill of Exactitude and Jiří Kylián's Sechs Tänze, Petite Mort, No More Play, Falling Angels, and Bella Figura, Jorma Elo’s Bach Cello Suites, Jerome Robbin’s Antique Epigraphs, Hans van Manen’s Black Cake, Angel in John Neumeier’s Third Symphony of Gustav Mahler, Leonid Yakobson’s Pas de Quatre, Tatiana in John Cranko’s Onegin.
Cornejo is still dancing with Boston Ballet as a Principal Dancer and as freelance, Erica has taught at the Boston Ballet Summer Programs as well as for many others. She is a certified teacher by the American Ballet Theatre National Training Curriculum for the levels Primary to III.
Miss Cornejo is the co-founder Artistic director of “INTEGRARTE “ a Dance Art Movement Center in Boston- USA, married to former Boston Ballet principal dancer Carlos Molina and is the sister of ABT principal dancer Herman Cornejo.