Red Carpet Newcomers

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Garret Hedlund

After making his acting debut opposite Brad Pitt in 2004's Troy, Hedlund made a name for himself six years later with scene-stealing roles in Tron: Legacy and Country Strong. The actor's next project? On the Road, which costars Kristen Stewart and Kirsten Dunst.

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Rosie Huntington-Whiteley

The British bombshell will make her feature film debut as Megan Fox's replacement in Transformers: Dark of the Moon. Prior to her foray into film, the supermodel -- who's dating actor Jason Statham -- appeared in ads for Burberry, Victoria's Secret, Abercrombie & Fitch, DKNY and Ralph Lauren.

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Chris Hemsworth

The buff actor -- who wed actress Elsa Pataky in December 2010 -- is set to take the superhero world by storm when he stars as Thor this April. Hemsworth will reprise his role thirteen months later in The Avengers.

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Elle Fanning

She played the younger version of her real-life sister Dakota in 2001's I Am Sam, but Elle has since made a name for herself with roles in The Curious Case of Benjamin Button and Phoebe in Wonderland. She later nabbed a Critics' Choice Award nomination for her performance in Somewhere.

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Andrew Garfield

After his critically-acclaimed role in The Social Network, Garfield earned a Golden Globe nomination for Best Performance by an Actor in a Supporting Role. The Details cover boy is slated to play Peter Parker in Spider-Man 4 (opposite fellow Golden Globe nominee Emma Stone).

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Willow Smith

The precocious singer's debut single "Whip My Hair" made it all the way to No. 11 on the Billboard Hot 100 charts in 2010. The daughter of Will Smith and Jada Pinkett-Smith, Willow has also appeared onscreen in I Am Legend, Kit Kittredge: An American Girl and True Jackson, VP.

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Bruno Mars

Thanks to songs such as "F*** You" and "Just the Way You Are," the Hawaiian-born singer/songwriter became the most Grammy Award-nominated artist of 2011. Mars previously won a Soul Train Music Award for the B.o.B. collaboration "Nothin' On You."

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Rooney Mara

The Social Network actress beat out Scarlett Johansson, Natalie Portman and Ellen Page for the starring role in Girl With the Dragon Tattoo (based on the best-selling novel). Mara later chopped off all her hair and dyed it jet black to bring the coveted character to life.

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B.o.B.

Since releasing his debut album in April 2010, the rapper/producer has scored numerous accolades for his work. Nominated at the American Music Awards, BET Awards, Grammy Awards and MTV Video Music Awards, B.o.B. has worked with artists including Bruno Mars, Eminem and Paramore's Hayley Williams.

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Lucy Hale

Two months after Pretty Little Liars debuted on ABC Family, Hale won Choice Summer TV Star at the Teen Choice Awards. Later nominated for a People's Choice Award, the actress next stars opposite David Arquette, Courteney Cox and Emma Roberts in Wes Craven's highly-anticipated Scream 4.

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Jesse Eisenberg

Praised for his spot-on portrayal of Facebook founder Mark Zuckerberg in The Social Network, Eisenberg earned Golden Globe and Screen Actors Guild nods. He'll next appear alongside Aziz Ansari in 30 Minutes or Less, and will later lend his voice to the animated film Rio (featuring Anne Hathaway).