Emma Watson in Balmain dress and Christian Louboutin Coroclic wedges.

Actor Zac Efron attends the premiere of 'Neighbors' at Regency Village Theatre on April 28, 2014 in Westwood, California (Getty)

Actors Christopher Mintz-Plasse (L) and Zac Efron pose at the after party for the premiere of Universal Pictures' 'Neighbors' at The Armand Hammer Museum on April 28, 2014 in Los Angeles, California. (Photo by Kevin Winter/Entertainment/Getty Images)

Actor/producer Seth Rogen (L) and actor Zac Efron pose at the after party for the premiere of Universal Pictures' 'Neighbors' at The Armand Hammer Museum on April 28, 2014 in Los Angeles, California. (Photo by Kevin Winter/Entertainment/Getty Images)

Actor Zac Efron attends Universal Pictures' 'Neighbors' premiere at Regency Village Theatre on April 28, 2014 in Westwood, California. (Photo by Kevin Winter/Entertainment/Getty Images)

Actor Zac Efron attends the premiere of 'Neighbors' at Regency Village Theatre on April 28, 2014 in Westwood, California (Getty)

Actor Zac Efron attends the premiere of 'Neighbors' at Regency Village Theatre on April 28, 2014 in Westwood, California (Getty)

Zac Efron at the 'Neighbors' Press Conference at the Mandarin Oriental Hotel on May 3, 2014 in New York City (Getty)

Zac Efron at the 'Neighbors' Press Conference at the Mandarin Oriental Hotel on May 3, 2014 in New York City (Getty)

Zac Efron visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on May 7, 2014 in New York City. (Getty)

Zac Efron visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on May 7, 2014 in New York City. (Getty)

Zac Efron (Courtesy of Instagram)

Zac Efron (Courtesy of Instagram)

Zac Efron (Courtesy of Instagram)

Zac Efron & Ashley Tisdale (Courtesy of Instagram)

Zac Efron (Courtesy of Instagram)

Zac Efron (Courtesy of Instagram)

Michelle Rodriguez and Zac Efron continue to feed rumors about their possible relationship and are spotted disembarking from a luxury yacht in Ibiza, Spain on July 31, 2013 (FameFlyNet)

Michelle Rodriguez and Zac Efron continue to feed rumors about their possible relationship and are spotted disembarking from a luxury yacht in Ibiza, Spain on July 31, 2013 (FameFlyNet)

Zac Efron & Michelle Rodriguez, Sardinia, July 3, 2014 (SplashNews)

Zac Efron and Michelle Rodriguez are seen getting off a boat together after enjoying the sun and the ocean on a boat in Porto Cervo, Sardinia on July 1, 2014 (Pacific Coast News)

Zac Efron & Michelle Rodriguez, Sardinia, July 3, 2014 (SplashNews)

Michelle at DJ Andrea Mendoza @ Billionaire Club Porto Cervo on July 7 Courtesy of Andrea Mendoza

Michelle Rodrigues posted to instagram on July 4, 2014. (Courtesy of Instagram)

Michelle Rodrigues posted to instagram on July 4, 2014. (Courtesy of Instagram)

Michelle Rodrigues posted to instagram on July 4, 2014. (Courtesy of Instagram)

Michelle Rodrigues posted to instagram on July 4, 2014. (Courtesy of Instagram)

Zac Efron dances to Jason Derulo's song, "Wiggle" while on vacation with Michelle Rodriguez on July 2, 2014 (Courtesy of Instagram)

Zac Efron speaks onstage at the 2014 MTV Movie Awards at Nokia Theatre L.A. Live on April 13, 2014 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)

Zac Efron (holding the Best Shirtless Performance award for 'That Awkward Moment') attend the 2014 MTV Movie Awards at Nokia Theatre L.A. Live on April 13, 2014 in Los Angeles, California. (Photo by Christopher Polk/Getty Images)

Zac Efron attends the 2014 MTV Movie Awards at Nokia Theatre L.A. Live on April 13, 2014 in Los Angeles, California. (Photo by Jason Merritt/Getty Images for MTV)

Rita Ora (L) and Zac Efron speak onstage at the 2014 MTV Movie Awards at Nokia Theatre L.A. Live on April 13, 2014 in Los Angeles, California. (Photo by Lester Cohen/WireImage)

Rita Ora (L) and Zac Efron speak onstage at the 2014 MTV Movie Awards at Nokia Theatre L.A. Live on April 13, 2014 in Los Angeles, California. (Photo by Lester Cohen/WireImage)

Zac Efron (Courtesy of Paramount Pictures)

Zac Efron (Splashnews)

Zac Efron (Splashnews)

Zac Efron Departing On A Flight In Austin March 9 (FameFlyNet)

Actors Michael B. Jordan, Zac Efron and Miles Teller speak onstage at The 40th Annual People's Choice Awards at Nokia Theatre L.A. Live on January 8, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

Zac Efron (Splashnews)

Zac Efron (FameFlyNet)

Zac Efron (Splash)

Zac Efron (Fameflynet)

Zac Efron (Courtesy of Twitter)

Zac Efron (Courtesy of Twitter)

Zac Efron (Splashnews)

Zac Efron (Splashnews)

Zac Efron (Fameflynet)

Zac Efron (Fameflynet)

Zac Efron (Fameflynet)

Zac Efron (Splashnews)

Zac Efron (Fameflynet)

Zac Efron (Fameflynet)

Zac Efron's dog Puppy (WhoSay/Zac Efron)

Zac Efron (Fameflynet)

Zac Efron (Getty)

Zac Efron (FameFlynet)

Zac Efron (SplashNews)

Zac Efron (Fameflynet)

Zac Efron (SplashNews)

Zac Efron (Getty)

Zac Efron touches down in Los Angeles, California on September 15th, 2012. (FameFlynet)

Zac Effron got a chance to relax in the GUESS Portrait Studio Lounge at the Toronto International Film Festival on Sept. 10th 2012 before taking their official TIFF portraits. TIFF lia sophia IT Lounge Portrait Studio: Stars at the Toronto International Film Festival stopped by social fashion brand lia sophia's IT Lounge Portrait Studio suite to add some sparkle to their style, picking out jewels from the new Special Edition Red Carpet collection. Nina Dobrev picked up the Cirque Cut Crystal ring ($38) to complement her feminine, vibrant shorts and top, while stars including Darren Criss, Agyness Deyn, Judy Greer, Jeanne Beker, Famke Jansen, Adrian Grenier, Kristian Alfonso (Days of Our Lives), Jodi Balfour (Bomb Girls), Ali Liebert (Bomb Girls) and Luisa D'Oliveira (50/50), among others, also stopped by. Famed photographer Patrick Demarchelier was on hand to shoot the stars. (Photo : Central Image Agency)

Zac Efron (Getty)

Zac Efron (Fameflynet)

Zac Efron as Jack in The Paperboy

Zac Efron (Getty)

Zac Efron is seen shirtless on his hotel balcony in Sydney, Australia. He came out to check out the Sydney Harbour Bridge and Sydney Opera House on April 8. (SplashNews.com)

Zac Efron Arrives On A Flight At LAX On March 3. (FameFlynet)

Zac Efron seen filming his new movie 'Paperboy' in New Orleans, Louisiana.

Zac Efron (Fameflynet)

A super soggy Subway sandwich was on order for young stud actor Zac Efron as he braved the rain in Studio City, CA on December 22nd, 2010. Will Subway tap Efron to promote their sandwiches after this great show of brand loyalty? In recent news Zac and actress Vanessa Hudgens have ended their relationship but has Zac already moved on?

Zac Efron (Fameflynet)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)

'Teenage Mutant Ninja Turtles' (Courtesy of Nickelodeon Movies)