In 1955, she traveled to Montevideo, Uruguay and appeared in a stage production and then moved to Venezuela for a year, before returning to Argentina.

[2] In 1945, Omar sang an anthem, a milonga, Soy La Descamisada,[3] which was created for the political campaign of Juan Perón.

She made only three films prior to 1955, including Canto de amor (1940), directed by Julio Irigoyen, which also starred the singer Carlos Viván.

[6] In 1951, she dubbed the singing voice of Mecha Ortiz in the film Mi vida por la tuya.

She would not make another film for 57 years, but in 2008, she worked on a documentary about tango entitled Café de los maestros under the direction of Miguel Kohan.

She died of cardiac arrest on 20 December 2013, aged 102, at the Hospital Universitario CEMIC in her native Buenos Aires.

[7] In 1986, she was declared Honorary Citizen of the City of Buenos Aires and received the award for Great Performer from the Society of Authors and Composers (SADAIC).