Contrary to popular belief, A-list celebrities weren't easily blessed with extremely good looks. A few old photos of celebrities show that they, too, had to deal with certain issues regarding their physical appearance. In celebration of "Throwback Thursday," here are a few dorkiest actors who are now among the hottest Hollywood celebrities.

How many times have fans heard of their favourite celebrities having started out as dorks? One of the most predictable tropes among Hollywood stars is that they all started as awkward, ugly and weird individuals before becoming the hunks and bombshells they are now. While some may claim to be so, these individuals proved that they did start out as such.

Who could ever forget the big-toothed and freckled-faced Emma Watson for "Harry Potter and the Sorcerer's Stone?" Now, Watson is one of the hottest women in Hollywood and the most fashionable icons of this time. Needless to say, Emma played a dork on film, but she turned out to be one hot dork today. Another "Harry Potter" star that evolved in front of viewers' eyes is Matthew Lewis. Not only did Lewis lose the big front teeth and the baby fat, but he grew up to be quite the ladies' man.

Former BFF's Selena Gomez and Demi Lovato were also two stars that started out as dorks. Both the former Disney stars were part of "Barney," featuring their pigtail hairstyle and gap-toothed smiles. Now, both Selena and Demi are among the hottest and most talented musicians.

Check out the slideshow to see more celebrities that started out as dorks and are now one of Hollywood's hottest.

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