Barlow guilty over Williams' breakdown

Take That star Gary Barlow feels guilty for failing to spot the warning signs when Robbie Williams was on the verge of a breakdown during their time together as bandmates.

The pair - along with fellow members Jason Orange, Mark Owen, and Howard Donald - formed the group in 1990. Williams quit the boyband to pursue a solo career in 1995 - and also began a highly-publicised battle with alleged substance and alcohol abuse.