The most people whistling simultaneously at a single venue is 672 and was achieved by the Nazareth Area Middle School Make-A-Wish Club, at the Nazareth Area High School Andrew S. Leh Stadium, in Nazareth, USA, on 27 May 2011.

The songs ‘God Bless America’ and ‘America the Beautiful’ were whistled for 6 min 47.59 sec.