"Basically, if you were in the team and you were Maori, you had the mantle to lead the haka."
While McCaw has led the All Blacks in a haka, team protocol was to have a player with Maori heritage to take the lead.
Weepu was an integral part of the All Blacks when it came to performing the haka.
The halfback led the All Blacks haka 51 times in his 71 tests between 2004 and 2013.
He led the Ka Mate version 26 times and the newer Kapa o Pango 25 times since its introduction against the Springboks in 2005.
The world-cup winner is now playing rugby for RC Narbonne in the French Pro D2 league.