Lady Gaga is the worst celebrity for torturing her hair in the name of beauty, and Rihanna, Britney Spears and Katy Perry are also identified in a survey as suffering for their looks.
The Pantene Torture Test surveyed 561 New Zealand women about their hair habits and the role models they saw as doing damage to their locks.
Thirty-six per cent voted for Gaga, a natural brunette, who highly styles and bleaches her locks, 14 per cent for Rihanna, 9 per cent for Spears (who has also gone skinhead) and 8 per cent for the multi-coloured Perry.
Nearly 50 per cent admitted they used hot styling tools at least once a week. Thirteen per cent admitted they used a hot iron daily or more frequently, while 8 per cent said they used them once a month.
A total of 61 per cent admitted they had suffered a "hair disaster".