The Swedish Agneta Eichenholz is known as one of the most versatile lyric sopranos at the time. She first attracted attention in 2007 at the Verbier Festival in Carmina Burana. In 2009 she made her breakthrough with her overwhelming debut at the Royal Opera House London in the title role of Alban Berg's Lulu. The production by Christof Loy was nominated for a Grammy.

Multiple engagements from important European opera houses followed: Opernhaus Zürich, Royal Opera Stockholm, Teatro Real Madrid, Komische und Deutsche Oper Berlin, Liceu Barcelona, Antwerpen, Rome, Theater Basel, Staatsoper Hamburg, Copenhagen and Gothenburg.
Her extensive repertoire includes roles such as Lulu, Daphne, Alcina, Circe (in Gluck's Telemaco), Fiordiligi, Konstanze, Elettra, Vitellia, Lucio Cinna (Lucio Silla), Violetta (La Traviata), Gilda (Rigoletto), Juliette (Roméo et Juliette), Norina (Don Pasquale), Sophie Scholl (White Rose), Cordelia (Lear), Eva (Meistersinger of Nuremberg) and Zdenka (Arabella).

Recently she gained great acclaim in the world premieres of Scartazzini's "Sandmann" at the Theater Basel and "Edward II" at the Deutsche Oper Berlin. After Cordelia (King Lear) at the Maggio Musicale Fiorentino and Grete (Der Ferne Klang) in Stockholm, she recently debuted her Salome (Strauss) at Deutsche Oper am Rhein.

Agneta has an intense concert activity and can be heard in various repertoire such as the Arthur Rimbaud settings Les Illuminations by Benjamin Britten, Berg's Seven Early Songs and his Lulu Suite, Mahler's Fourth and Richard Strauss' Four Last Songs, and other works by Joseph Canteloube, Francis Poulenc and Jean Sibelius. She has also appeared in major choral orchestral works by Handel, Mozart, Fauré and Orff. Contemporary music is also a focal point for her.

After her return to the Theater an der Wien as Ellen Orford (Peter Grimes), current highlights include:
Emilia Marty (Makropulos Case) in Malmö, «Jenufa» in Sevilla and Antwerp, Sylvia Varescu (Csardasfürstin) in Oslo and Fiordiligi (Così fan tutte) at the Festival d’Aix en Provence and the Chatelet in Paris.