Anton Haizinger heard Haizinger sing in concerts, and offered him an engagement at the theatre; Haizinger gave up teaching. Haizinger's first roles at Theater an der Wien, in 1821, were in two operas by Rossini, as Gianetto in "La gazza ladra" and Lindoro in "L'italiana in Algeri". He soon became well-known in Vienna. The role of Adolar in Weber's opera "Euryanthe", premiered in 1823 at the Theater am Kärntnertor, was created for him, and he was a soloist in the premiere in 1824 of Beethoven's Ninth Symphony at the same theatre. He continued studies with Antonio Salieri. At this time, Italian opera
Rudy La Scala number-one single for La Scala. At the 1991 Lo Nuestro Awards, La Scala was nominated for Pop Artist, Pop Song ("El Cariño Es Como Una Flor") and Album of the Year ("Cuando Yo Amo"). La Scala also wrote and produced in 1996 an album for Viviana Gibelli. The same year he released the song "Cuando Mi Amada Me Ama", from the album "Sentimientos". The following year the album "En Cuerpo y Alma" hit the record stores. La Scala produced a group named Axies in 2000 and also began a tour in Latin America, the United States and Europe. In 2007,