In this undated, publicly provided picture by Volksoper Vienna, children dressed 

In this undated, publicly provided picture by Volksoper Vienna, children  dressed as angels perform during a rehearsal of the opera Hansel and Gretel, by composer Engelbert Humperdinck in the Volksoper opera in Vienna.  (AP Photo/HONS/ Barbara Palffy,Volksoper Vienna)
Associated Press
In this undated, publicly provided picture by Volksoper Vienna, children dressed as angels perform during a rehearsal of the opera Hansel and Gretel, by composer Engelbert Humperdinck in the Volksoper opera in Vienna. (AP Photo/HONS/ Barbara Palffy,Volksoper Vienna)
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