Social media has the power to turn your Average Joe (or Jane) into an overnight celebrity. Take Alabama Crimson Tide QB A.J. McCarronâ€™s girlfriend Katherine Webb for instance. The gorgeous model racked up 90,000 Twitter followers just off her on-camera appearance during the BCS National Championship game. All in a matter of 24 hours mind you. Impressive numbers for a hot chick with no name, though she's managed to pull off a feat that a handful of todayâ€™s top celebs have accomplished when signing up for the hashtag-heavy social network. Want names and stats? Take a look at 15 Celebrities Who Gained the Most Twitter Followers In One Day.