Crux of Crux is the distinctive asterism known as the Southern Cross. It has great significance in the cultures of the southern hemisphere, particularly of Australia and New Zealand. "Southern Cross" is a single released by Crosby, Stills and Nash in 1981. It reached #18 on Billboard Hot 100 in late 1982. Several southern countries and organisations have traditionally used Crux as a national or distinctive symbol. The four or five brightest stars of Crux appear, heraldically standardised in various ways, on the flags of Australia, Brazil, New Zealand, Papua New Guinea and Samoa. They also appear on the flags of
2015–16 New Zealand flag referendums between the selected alternative (the Silver Fern Flag) and the existing New Zealand flag. The final decision was to keep the current flag. Reception of the process was critical, with no great enthusiasm shown among the public. New Zealand has a history of debate about whether the national flag should be changed. For several decades, alternative designs have been proposed, with varying degrees of support. There is no consensus among proponents of changing the flag as to which design should replace the flag. In January 2014, Prime Minister John Key floated the idea of a referendum on a new flag