me-I-must-be-dreaming phase. The 25-year-old actress is now starring in her third Broadway show, and originating a role for the first time, only four years after landing in New York by way of an unlikely vehicle: a reality TV show. “I think if I had written it out myself, I wouldn't have planned it as good as this. In my wildest dreams, I never would have imagined all of the amazing opportunities that I've had,” Osnes says during a break in rehearsals for “Bonnie & Clyde,” which has music by Frank Wildhorn. Thanks to talent and some good luck, Osnes has speedily gone from performing “Grease” in dinner theater in Minneapolis to doing the same musical on Broadway after winning NBC's “Grease: You're the One That I Want” in 2007. After that, she replaced Kelli O'Hara in “South Pacific” and got the chance to sing and dance alongside her hero Sutton Foster in “Anything Goes.” Now her two-and-a-half-year investment in bank robber Bonnie is about to pay off. “This is my first originating role so it's just been so exciting to be part of this process pretty much from the ground up,” she says. “It was kind of magical how the whole thing happened.” Osnes initially auditioned for an earlier Wildhorn musical — “Wonderland,” an updated telling of “Alice in Wonderland.” She lost the lead role of Alice to Janet Dacal but Wildhorn, the composer of such Broadway shows as “Jekyll & Hyde” and “The Scarlet Pimpernel,” was impressed. __