The reason you rarely see Slash without the hat is because it's his way of blocking out his stage fright. Whenever you see him onstage with the hat down low and his bushy coiffure covering the part of his face that the hat can't manage, odds are he's not doing it to look cool -- he's doing it so he doesn't have to see you. (Yes, you specifically.)

Mark Metcalfe/Getty Images Entertainment/Getty Images

It wasn't always the top hat. Slash sampled other styles early in his career before finding -- and stealing -- the top hat one fateful night in 1985. His "hide beneath the hat" method probably also came in handy for not having to see his mom naked with David Bowie again.

Dewars

And speaking of David Bowie's body parts ...

David Bowie has never stuck to one particular style for very long. One day he's a glam rocker, the next he's in a suit and tie, occasionally he's something called a "Ziggy Stardust," and still other times he's giving your childhood self pants-induced nightmares. But throughout each and every image transmogrification, there's one thing that remains (somewhat disturbingly) constant: those crazy-ass eyes.

Columbia Records

Commonly confused with heterochromia (a condition in which a person's eyes are two different colors), Bowie's eyes are actually both the very same mesmerizing shade of blue. They only appear different because one of his pupils is perpetually stuck in "No, officer, I haven't been smoking anything. Why do you ask?" mode.

And It's Actually Because:

It's very much unintentional, and it's all because of a girl ... well, and because Bowie is a bit of a dick.

Tri-Star Pictures

See, while Bowie was hanging out with his friends George Underwood and Peter Frampton (yes, that Peter Frampton) back in high school, George scored a date with a girl that Bowie himself fancied. Taking an "all's fair in love and war" approach to the matter, Bowie told George that the girl was totally planning to stand him up. Every ounce of this story was bullshit, and it resulted in George being the one doing the standing up while the girl spent the entire evening tapping her foot and repeatedly glancing at her watch.

Feeling like a complete tool upon finding out, George went to confront Bowie, only to find him bragging about stealing George's girl. George hauled off and delivered a haymaker that would make Muhammad Ali nod in quiet admiration, granting Bowie a personal tour of the emergency room along with a permanently paralyzed left pupil.

Ron Galella/Ron Galella Collection/Getty Images

Things ended well enough, however: George and Bowie made up, and Bowie considers the look a blessing in disguise. George even went on to design some of Bowie's most iconic album covers, possibly because Bowie's gimpy eye couldn't focus well enough for him to do it himself.

But he didn't do that right away. First, he tried to conceal it ... with a glove. According to actress Cicely Tyson, a close friend of Michael's who was present when the glove was designed, its main purpose was to cover up the white blotches that had developed on his right hand. And when you think about it, that makes a hell of a lot more sense than the Diana Ross theory, seeing as how vitiligo tends to start in the hands and lips. Though you do have to wonder if he ever considered, you know, two gloves.

The next thing you know, we'll discover that Michael once insisted on bringing a llama into a recording studio because their wool provides unprecedented acoustics or some shit. What if ... what if Michael was the sane one, and it's all the rest of us who are weird?

Holy shit, that doesn't even look like the same guy. He didn't just switch up his musical style; he full-on transformed into another person.

And It's Actually Because:

Although the new look did seem to coincide with his new musical style, that wasn't the impetus for the change. During a mountain climbing trip in the mid-'70s, Hank lost his footing and fell 500 feet, landing face-first on a boulder. The impact caused his face to, as People magazine put it, "split open down the middle, hairline to chin as if struck with an axe" or, as Cracked put it, "crack down the center, much like a butt crack, making his face like a butt." Also, holy shit, the man fell 500 feet and landed on his face.

Paul Hawthorne/Getty Images Entertainment/Getty Images

It took years of reconstructive surgery to repair the damage and, since something like that tends to leave a bit of scarring, Hank needed a way to distract from those scars. Thus, he adopted the (conveniently face-covering) look that has become his trademark. On second thought, we take back our smart-ass comment -- a man who can have his face split in half like a T-1000 and live to sing about it is the absolute last man we want to be calling a butt-face.

AC/DC's Angus Young is also famously proficient in the waddling arts:

AC/DC

And just in case you're a complete musical dummy, here's Michael J. Fox doing it in Back To The Future:

Universal Pictures

Marty McFly is, of course, playing "Johnny B. Goode," one of Chuck Berry's biggest hits, while also paying homage by trotting out Chuck's slickest move. In fact, the walk is so recognizable that it's almost become the de facto rock guitar posture. Like, if you're not playing your solo as if you're a hunchback who has to pee really bad, then you're simply not doing it right.

And It's Actually Because:

The duckwalk originated as a silly thing Chuck did as a kid to make the grown-ups laugh. It certainly wasn't something he ever planned to trot out in front of a crowd once he became famous.

Evening Standard/Hulton Archive/Getty Images

But then, at one New York City show early in his career, he had a problem: The front of his suit was all wrinkly. Since "Is there a dry cleaner in the house?" isn't exactly the kind of thing that gets the crowd all riled up when screamed into a mic, Chuck instead broke out his childhood hunch-skip as he played. The guitar covered up the embarrassing wrinkles, the crowd lost their collective shit, and Chuck "Rock Daddy" Berry gave birth to yet another genre staple.

Sinead was well aware of the industry's reputation and, despite her management's attempts to make her "pretty," she wasn't about to put herself in a position to get taken advantage of. So she pulled an "Edward Norton in 25th Hour" and got ugly as a way to protect herself from unwanted advances. She stopped at the skee-ball, although she later said that it'd "be better to have a bag on [her] head, really."

Mike Coppola/Getty Images Entertainment/Getty Images