But one year on, he's got a hot new look and it's 19-year-old Twilight hunk Taylor Lautner who can take the credit.
'It's inspired by that guy in Twilight,' explains Liam. 'I modelled it on his.'
The 18-year-old chart-topper decided to ditch his beloved straighteners and go for the chop because he kept getting compared to curly-haired band mate Harry Styles.
'I was sick of everyone telling me that I looked like Harry,' Liam tells The Mirror.
Well, we think he looks fab!
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