"Everytime he tweets, I get thousands of more followers."

Nineteen-year old Sarah Killen, or Lovely Button as Twitter nation knows her, says she had three followers on Twitter Friday morning. Little did she know Conan O'Brien would become one of them.

O'Brien tweeted Friday afternoon: 'I've decided to follow someone at random...Sarah Killen, your life is about to change.'"

"I went from three followers to a few thousand within an hour," says Killen.

And by Sunday, she had more than 15,000 people following her and hundreds trying to get in touch with her.

"Aking me to shout-out their charities or people they know that need help. Small businesses want to give me things," Killen says.

One of Kllen's followers gave her a brand new Mac computer for tweeting about his company. Another offered to make her a wedding dress.

"I wasn't even going to be able to wear one. But now I'm getting one custom-made," says Killen.

Killen and her 21-year-old fiance John Slowick Jr. have been planning their September wedding for more than a year.

"I was really worried, being unemployed how we were going to pay for the wedding," says Slowick.

"Someone the other day from India said they want to come to our wedding. People ask if Conan is coming," Killen says.

Killen says she's already sent O'Brien an invite.

"That'd be fantastic if he came," Killen says.

Whether the host RSVP's or not, Killen says she feels lucky.

"It's helping out the charities and the wedding. Even if all this stuff stop today, with Twitter, I'm really happy what I got out of it. It's really up to him, how long it lasts."

Killen says she's taking a two-day break from Twitter. She's working on getting her high school diploma, and she told us she hasn't been able to get much work done this weekend with everything that's happened.