The Kardashian effect: Mason joins the family trend-setting business as 2011 list of most popular baby names is revealed

The Kardashian effect: Kourtney”s son Mason joins family trendsetting business as 2011 list of most popular baby names is revealed

The Kardashian effect: Mason stormed into the top ten boys names this year

The Kardashian effect: Mason stormed into the top ten boys names this year

Celebrity power: Britney Spear

Royal influence: The Royal Wedding saw the name Pippa leap onto the list, up 45 per cent, from complete obscurity