YouTube 上发现了这位歌唱家。(2007-12-25)

Vivica Genaux (born in Fairbanks, Alaska) is an American mezzo-soprano. Vivica Genaux as Rosina in Rossini's The Barber of Seville.Ms. Genaux studied with the late Nicola Rossi-Lemeni and Virginia Zeani at Indiana University Bloomington and currently studies with Claudia Pinza (daughter of bass Ezio Pinza). She began her professional career specializing in charming portrayals of Rossini comic heroines (Rosina in Il barbiere di Siviglia, Isabella in L'italiana in Algeri, Angelina in La Cenerentola). She has performed these roles more than two hundred times with many of the major U.S. opera companies (including the Metropolitan Opera, San Francisco, Dallas, Seattle, San Diego, and Pittsburgh Operas), as well as in Paris, Vienna, Berlin, Amsterdam, Dresden, Munich, Montreal, Tel Aviv, Verona, Santiago and Perth. --- edited based on information from Wikipedia.
Her role as the hero in Handel's "Arminio" was her first baroque role, and she continues to expand her repertoire, which currently includes 28 roles, 20 of which are pants roles (a woman—often a mezzo-soprano—playing a male character).

Vivica Genaux sing the aria : Qual guerriero in campo armato
This is the great aria "Qual guerriero in campo armato" by Riccardo Broschi, originally composed to display the vocal wonders of his brother Carlo, the famous castrato "Farinelli" who lived in the 18th century. Vivica Genaux sings this terrific masterpiece of rapid vocalization with a supreme command of vocal technique.

Bel Canto Arias_ Vivica Genaux
It´s the promotion-video from the EMI-Classics-website. You can get some background information about her and her singing.