Cowell tells 'indulgent' Britney and Robbie to 'get a grip'

Music mogul Simon Cowell has blasted troubled stars Britney Spears and Robbie Williams for checking into rehab, insisting they have no idea of what hard life really is.

The American Idol judge recently visited an impoverished nation and after witnessing the horrific conditions people were forced to live in, he believes Spears and Williams' problems pale in comparison.