One Direction's Harry Styles: I was so run down in US I had a vitamin jab in my bum
It seems rushing around the US as a support act for Big Time Rush has taken its toll on the One Direction boys.
Harry Styles, 18, has revealed that the band's hectic schedule is making him and the lads feels poorly.
'Four of us had to have vitamin jabs because we were run down,' says Harry.
'I had mine in my bum.'
1D reached No 28 on the Billboard Singles Hot 100 with Brit Award-winning single What Makes You Beautiful and their debut album Up All Night shot to No 1 on the US iTunes charts.
Despite being thrilled at their success over the pond, Harry says 1D have been through some tough times on the road.
'I get ill all the time - it's all the travelling and long distance flights,' Harry tells the Daily Mirror.
'I do get homesick too.'
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