Bruce Dickinson chastised fans who were smoking during his April 27 concert at the Opera Hall in Brasília, Brazil.
The Iron Maiden frontman, who is out touring in support of his recent solo album, The Mandrake Project, became irate when air quality began affecting his performance.
Check out the video below, especially at :31 seconds in, where he gives his heated message.
The full story can be found here courtesy of Ultimate Classic Rock.