Jarnette Olsen takes her newborn girls to audition for an ABC sitcom, Full House, at Lorimar Studios in Culver City, Calif., and they beat out nine other sets of twins. "They were more open to strangers," Full House executive producer Jeff Franklin told the Washington Post. "They were smiling all the time." When Full House debuts in Sept. 1987, the twins share the role of Michelle Tanner and earn $2,400 each per episode.
The Olsen family hires entertainment industry attorney Robert Thorne to negotiate the twins' salary up from $4,000 per episode to $25,000 and then to $80,000 by the end of the show. Thorne becomes the CEO of the twins' Dualstar Entertainment Group in 1993 and helps guide the enterprise into a billion-dollar company.
The 6-year-old twins record their first album, Brother for Sale, the release of which launches the Olsen phenomenon. ''I like the song called 'I Want to Trade My Brother,''' Mary-Kate tells PEOPLE. ''Yeah,'' Ashley agrees with a giggle. ''When we were rehearsing it, our brother Trent said, 'I hate that song!'''