Merv Hughes' moustache: 225,000 Former Australian bowler Merv Hughes was so protective of his infamous 'handlebar moustache that he insured it for 225,000. Damaging his face fuzz is probably the least of his worries these days - not only was he dumped from the board of Cricket Australia selectors, but hes also had to witness his beloved nations humbling at the hands of England in the second Ashes Test. Bruce Springsteen's voice: 3.5m Another musician who is taking no chances with his livelihood is Bruce Springsteen, who insured his voice for an impressive $6 million (3.5 million). Meanwhile, Bruce Springsteen and his E Street buddies have performed a secret concert, just off the boardwalk in Asbury Park, New Jersey. Cristiano Ronaldo's legs: 90m Cristiano Ronaldos legs are also worth a pretty penny. The Portuguese star cost Real Madrid 80 million and reports indicate the Spanish club have protected their investment with a 90 million insurance policy on the forwards legs. Ronaldo was born on February 5, 1985 in Santo Antonio, a neighbourhood of Funchal, Madeira, the youngest child of Maria Dolores dos Santos Aveiro, a cook, and Jose Dinis Aveiro, a municipal gardener. His second given name, Ronaldo, was chosen after then-US president Ronald Reagan, who was his fathers favourite actor. He has one older brother, Hugo, and two older sisters, Elma and Liliana Catia. Troy Polamalu's hair: 650,000 You might not expect big, burly American footballers to be bothered by the state of their hair. Not so for NFLs Troy Polamalu, whose locks were insured by a shampoo company for a hefty $1 million (650,000) last year. In case you were wondering how long itd take to grow a similar 'do, Polamalu says he has not cut his hair since 2000. Ken Dodd's teeth: 4m Stars will generally look to protect their most identifiable feature. So it made sense that comedian Ken Dodd allegedly had his prized gnashers insured for 4 million. Meanwhile, there's no stopping Ken Dodd, a comedian who has worked non-stop since his professional debut at the Nottingham Empire in 1954. At 83, he is still touring and stops off at the Theatre Royal, St Helens, with his long-running Laughter Show. David Beckham's legs: 44m David Beckham made sure hed receive a massive payout should he suffer a severe leg injury, insuring his pins for a whopping $70 million (44 million). Still, given that hes already worth around 125 million (according to the Sunday Times Sport Rich List), hed probably be able to make ends meet without that policy. Heidi Klum's legs: 1.1m Back in 2008, supermodel Heidi Klum insured her legs for an enormous 1.1 million. So thats 550,000 per leg, right? Wrong. Her right pins covered for 600,000, while a small scar on the left means its only 'worth 500,000. Speaking in an interview at the time, Klum confirmed: They are different values because I have this little scar. I had to be examined in London. A guy came and inspected my legs. What a tough job that man had... Fernando Alonso's thumbs: 8.7m Driving a Formula One car would be rather difficult without thumbs, dont you think? Ferraris sponsors, Santander, certainly do. Thats why theyve insured driver Fernando Alonsos digits for the princely sum of 8.7 million. Alonsos thumbs are a symbol, as well as being essential for driving a Formula One car, in that they make a sign of victory and show that everything is protect, the bank said in a statement. Mariah Carey's legs: 636m But the prize for most valuable legs in the world has to go to US singer Mariah Carey, who had her insured for a whopping $1 billion (636 million) after she was signed up for Gillettes Legs of a Goddess campaign. That means her pegs are roughly 580 times more valuable than Heidi Klums and 14 times more valuable than David Beckhams in the crazy world of insurers.