CONWAY TOWNSHIP, Mich. -- Last week, Sarah Killen had three Twitter followers.
This week, she has 20,000 -- as well as a new iMac computer and offers to help pay for a dress and drinks for her wedding.
The unsuspecting rural Michigan woman has one out-of-work late-night talk show host to thank for her newfound online popularity -- Conan O'Brien.
O'Brien decided last week to pick Killen as the only person he would follow on Twitter, turning the 19-year-old's life upside down.
The deposed ''Tonight Show'' star whose exit deal with NBC barred him from TV appearances for several months, has taken to Twitter to reach the masses during his exile and has amassed more than a half-million followers.
But up until Friday, O'Brien had steadily increased his number of Twitter devotees without following the feeds of anybody else.
Enter Killen, who is finishing up her high school requirements, preparing to make the jump to college and getting married in September.
''I've decided to follow someone at random,'' O'Brien's posting read at 3:55 p.m. Friday. ''She likes peanut butter and gummy dinosaurs. Sarah Killen, your life is about to change.''
Boy, did it ever.
Immediately after O'Brien started following her, Killen -- whose Twitter handle is ''LovelyButton'' -- picked up followers at a rate of 150 per minute.
Then came the calls: Family, friends (actual and long-lost) and interview requests from Web sites, TV shows and radio stations.
She sleeps a few hours each night, has fallen woefully behind on her schoolwork and day-to-day activities such as laundry and rarely leaves the house.
''It's totally nuts,'' she said.
Until O'Brien plucked Killen from obscurity and turned her into an overnight Web celeb, she and fiance John Slowik Jr. lived a normal life, residing in the basement of a house in Conway Township, more than an hour's drive west from Detroit.