AP Photo/Procter & Gamble, Bob Riha Jr.
Pittsburgh Steelers' Troy Polamalu poses for photos in Los Angeles on July 16, 2010, in a photo provided by Procter & Gamble. The long, flowing black hair that tumbles out of Polamalu's helmet and down his back - it's nearly three feet long - has been insured for $1 million by Head & Shoulders, the shampoo brand that is endorsed by the Steelers safety.
Andre Agassi
AP Photo
Tennis star Andre Agassi was known for his distinctive long hair, but it turns out it wasn't actually his - in his November 2009 autobiography "Open," he admits the flowing mane was actually a wig.
Of course, Agassi isn't the only guy with memorable locks. Let's take a look at some others.
Sanjaya Malakar
Frank Micelotta/FOX
"American Idol" finalist Sanjaya Malakar wasn't the best singer on the show, but he was definitely creative with his hairstyles (note the faux-hawk he's sporting in this photo from the show).
Phil Spector
Getty Images
Music producer Phil Spector's hairstyle has changed several times over the course of his trial for the murder of actress Lana Clarkson who died in the foyer of the rock legend's home on February 3, 2003. Spector's defense team claims that Clarkson killed herself. (Photos by, clockwise from left, Ringo H.W. Chiu, Gabriel Bouys/AFP, Lucy Nicholson/AFP and Matthew Simmons).
The Bee Gees
AP Graphics Bank
Andy wasn't the only Gibb to have great hair. Here are, from left, Maurice, Barry, and Robin Gibb in the 1970s.
Michael Jackson
AP Graphics Bank
Michael Jackson didn't always look the way he does now. Before the straightened hair, before the Jheri curls, Michael and his brothers all were rocking afros. Here's a young Michael during his Jackson 5 days in the early '70s.
Sebastian Bach
Getty Images/Paul Hawthorne
Did somebody say "hair band"? There are lots of heavy metal guys that could have made the list, but we couldn't fit them all in. Here's ex-Skid Row singer Sebastian Bach in 2005 showing off one gorgeous head of hair.
Yanni
GETTY IMAGES/Robert Mora
Recording artist Yanni doesn't look like he'll be reaching for a bottle of Rogaine any time soon. He's shown here on Valentine's Day in 2003.
John Mayer
AP Photo/Danny Moloshok
Mayer is too good of a musician and songwriter to be written off as a pop idol. But, there's no denying he's got pop star looks with that luscious wavy hair of his.
Bob Marley
AP Graphics Bank
No discussion of stars with famous locks would be complete without reggae legend Bob Marley. Marley's dreadlocks were a reflection of his Rastafari spiritual beliefs and not a fashion statement.
Kenny G
GETTY IMAGES/Chad Buchanan
Sax player Kenny G is used to getting derided for his uber-commercial brand of smooth jazz and his long curly hair. But, he defends himself by counting the late jazz legend Miles Davis as a fan. "If Miles says I'm doing good, and some critics say I stink, why would I listen to them?" he told the St. Petersburg Times.
Michael Landon
AP Graphics Bank
Whether he was a pioneer dad or an angel, Michael Landon's hair always looked picture perfect on his shows "Little House On The Prairie" and "Highway to Heaven."
Milli Vanilli
AP Graphics Bank
Girl, you know it's true we couldn't forget these guys! Shown here resplendent in their trademark braids and Spandex are Fab Morvan and Rob Pilatus -- better known as Milli Vanilli. They were forced to give back their 1990 best new artist Grammy when it was discovered they never actually sang on their records. Pilatus died of a drug overdose in 1998, but Morvan has forged ahead with a solo career.
Fabio
CBS
Fabio was famous as a model for the covers of romance novels. He had the gorgeous long, blond hair and muscular physique typical of a bodice-ripping hero. He's since become a romance novel himself and is still seen on commercials and in cameo roles on TV and film.
Bon Jovi
AP
Even in his 40s, Jon Bon Jovi's hair still looks as healthy and thick as a teenager's. Pretty good considering all the hair products and teasing his hair must have gone through during Bon Jovi's 1980s hair band phase.
Stevie Wonder
AP Graphics Bank
Legendary musician Stevie Wonder started wearing braids in 1972, often with elaborate beading and down to his waist.
Michael Bolton
AP Graphics Bank
Michael Bolton has since cut his hair short, but it's hard to forget his long-haired phase. Make that his long-haired-receding-hairline phase. That didn't seem to bother his former fiancee, "Desperate Housewives" star Nicolette Sheridan.
Hanson
AP Graphics Bank
Brothers Zac, Isaac and Taylor Hanson burst on to the pop scene with their 1996 megahit "MMMBop." Their long hair harkened back to past teen idols like Leif Garrett and David Cassidy.
The Beatles
AP
The Beatles shocked America when they showed up on this side of the pond with their mod, mopped-topped hair. More than 40 years later, we still think Paul's the cute one.
Howard Stern
AP Photo/Stuart Ramson
Howard Stern would be the first person to tell you he's not necessarily the prettiest boy on the block. But he's been able to pull off a little bit of a rock star vibe with his long wavy hair.
Lenny Kravitz
AP
Lenny Kravitz has always been able to effortlessly pull off his signature hippie meets rock star look. Over the years he's worn his hair in braids, dreadlocks, afros, and close-cropped styles.