3. Jennifer Lawrence
Biggest accomplishment this year: Winning the Academy Award for Best Actress, for Silver Linings Playbook
At this point, we're all living in Jennifer Lawrence's world. The 22-year-old has become one of the most sought-after names in Hollywood, winning an Oscar for Silver Linings Playbook and being named one of Time Magazine's 100 Most Influential People in the World this past April. She's attached to a number of upcoming projects, most notably the first Hunger Games sequel Catching Fire, which is slated for release in November of this year. She also had a hosting gig on Saturday Night Live, proving that she is certainly not above making fun of herself.