LONDON, ENGLAND - MAY 12: Sienna Miller (L) and Savannah Miller attend the Arqiva British Academy Television Awards 2013 at the Royal Festival Hall on May 12, 2013 in London, England.
CULVER CITY, CA - APRIL 20: (L-R) Actors Liam Hemsworth, Chris Hemsworth and Luke Hemsworth attend City Year Los Angeles' spring break: destination education at Sony Pictures Studios on April 20, 2013 in Culver City, California.
IBIZA, SPAIN - JULY 16: Actress Penelope Cruz (R) and sister Monica Cruz attend the photocall for New Mango Collection on July 16, 2007 at Atzaro Hotel in Ibiza, Spain.
NEW YORK - FEBRUARY 12: Maggie Gyllenhaal and Jake Gyllenhaal attend the after party for the off-broadway opening night of "Uncle Vanya" at Pangea on February 12, 2009 in New York City.
NEW YORK, NY - SEPTEMBER 13: Actresses Dakota Fanning and Elle Fanning attend the Rodarte Spring 2012 fashion show during Mercedes-Benz Fashion Week on September 13, 2011 in New York City.
SANTA MONICA, CA - OCTOBER 27: Dedee Pfeiffer and host Michelle Pfeiffer arrive at Elyse Walker presents the 8th annual Pink Party hosted by Michelle Pfeiffer to benefit Cedars-Sinai Women's Cancer Program held at HANGAR:8 on October 27, 2012 in Santa Monica, California.
VALENCIA, CA - OCTOBER 18: Singer Adam Levine (L) and brother Michael Levine attend the grand opening of M. Fredric at Westfield Valencia Town Center on October 18, 2011 in Valencia, California.
NEW YORK - NOVEMBER 15: Actress Emma Watson (R) Alex Watson attend the premiere of "Harry Potter and the Deathly Hallows - Part 1" at Alice Tully Hall on November 15, 2010 in New York City.
LOS ANGELES, CA - MARCH 03: Actresses AnnaLynne McCord (L) and Angel McCord pose at the CW Network's "90210" Season 5 Wrap Party on March 3, 2013 in Los Angeles, California.
NEW YORK, NY - OCTOBER 05: Ashley Olsen, Elizabeth Olsen and Mary- Kate Olsen attend the NYLON & AX Armani Exchange Private Dinner for the October issue with cover star Lizzie Olsen on October 5, 2011 in New York City.
BEVERLY HILLS, CA - JANUARY 13: Director/ actor Ben Affleck and actor Casey Affleck attend the 2013 InStyle and Warner Bros. 70th Annual Golden Globe Awards Post-Party held at the Oasis Courtyard in The Beverly Hilton Hotel on January 13, 2013 in Beverly Hills, California.
WEST HOLLYWOOD, CA - AUGUST 10: Dancer Derek Hough and actress/dancer Julianne Hough attend Cosmopolitan's Summer Bash at Palihouse on August 10, 2013 in West Hollywood, California.
LAS VEGAS, NV - FEBRUARY 18: Jade Port and Whitney Port attend Lily Bar & Lounge grand opening celebration on February 18, 2012 in Las Vegas, Nevada.
CINCINNATI, OH - APRIL 07: Josh Hutcherson, star of the "Hunger Games", shares a moment with Connor Hutcherson before the start of the game between the Miami Marlins and Cincinnati Reds at Great American Ball Park on April 7, 2012 in Cincinnati, Ohio. The Marlins defeated the Reds 8-3.
Kendra Andrews and Erin Andrews arrive at The Step Up 3D Los Angeles Premiere at the El Capitan Theatre on August 2, 2010 in Hollywood, California.
Lizzy Pattinson and Victoria Pattinson attend the "Water For Elephants" premiere at the Ziegfeld Theatre on April 17, 2011 in New York City.
LOS ANGELES, CA - AUGUST 28: Miley Cyrus and sister Brandi Cyrus arrive at the 2011 MTV Video Music Awards at the Nokia Theatre L.A. Live on August 28, 2011 in Los Angeles, CA.
Nikki Reed and her brother Nathan Reed attend The 12th Annual Young Hollywood Awards Sponsored by JC Penny, Mark & Lipton Sparkling Green Tea - Cocktail Reception on May 13, 2010 in Los Angeles, California.
LOS ANGELES - AUGUST 2: Actors Oliver Hudson and his sister Kate Hudson pose at the afterparty for the premiere of Universal Picture's "The Skeleton Key" at the Universal Studio Tour on August 2, 2005 in Los Angeles, California.
Ryan Gosling and sister Mandi Gosling during "Fracture" Los Angeles Premiere - Red Carpet at The Mann Village Theatre in Westwood, California, United States.
Sofia Vergara (right) and her sister Sandra
NEW YORK CITY - FEBRUARY 07: (L-R) Scarlett Johansson and Hunter Johansson sighting on February 7, 2012 in New York City, New York.
HOLLYWOOD, CA - SEPTEMBER 25: Stella Hudgens and Vanessa Hudgens attends Premiere Of "Iris" - A Journey Into The World Of Cinema By Cirque du Soleil at the Kodak Theatre on September 25, 2011 in Hollywood, California.
NASHVILLE, TN - JUNE 05: Singer Taylor Swift and Austin Swift attend the 2013 CMT Music awards at the Bridgestone Arena on June 5, 2013 in Nashville, Tennessee.
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LONDON - JULY 02: Socialite Paris Hilton is seen front of stage as Madonna performs at "Live 8 London" in Hyde Park on July 2, 2005 in London, England. The free concert is one of ten simultaneous international gigs including Philadelphia, Berlin, Rome, Paris, Barrie, Tokyo, Cornwall, Moscow and Johannesburg. The concerts precede the G8 summit (July 6-8) to raising awareness for MAKEpovertyHISTORY.
INDIO, CA - APRIL 13: Alessandra Ambrosio enjoys a Fruttare Fruit Bar at the Fruttare Hangout at Coachella. New Fruttare Fruit Bars are now available in stores nationwide.
PADDOCK WOOD, UNITED KINGDOM - JULY 02: Alexa Chung attends the Hop Farm Music Festival on July 2, 2011 in Paddock Wood, United Kingdom.
NAPA, CA - MAY 11: Ashley Benson wears the aerie Festival Bandeau at BottleRock - Day 2 on May 11, 2013 in Napa, California.
GLASTONBURY, ENGLAND - JUNE 30: Model Cara Delevingne is pictured during day 4 of the 2013 Glastonbury Festival at Worthy Farm on June 30, 2013 in Glastonbury, England.
INDIO, CA - APRIL 14: TV personality Carmen Electra attends day 3 of the 2013 Coachella Valley Music & Arts Festival at the Empire Polo Club on April 14, 2013 in Indio, California
INDIO, CA - APRIL 13: Model Chanel Iman, from Los Angeles, poses during day 2 of the 2013 Coachella Valley Music And Arts Festival at The Empire Polo Club on April 13, 2013 in Indio, California.
THERMAL, CA - APRIL 14: Actress Diane Kruger attends day 1 of LACOSTE L!VE Hosts a desert pool party in celebration of Coachella on April 14, 2012 in Thermal, California.
GLASTONBURY, UNITED KINGDOM - JUNE 30: Florence Welch attends the Glastonbury Festival of Contemporary Performing Arts at Worthy Farm, Pilton on June 30, 2013 in Glastonbury, England.
CHELMSFORD, ENGLAND - AUGUST 21: Jameela Jamil attends the launch of Mahiki Coconut liqueur backstage during Day Two of V Festival 2011 on August 21, 2011 in Chelmsford, England.
GLASTONBURY, ENGLAND - JUNE 25: Jamie Hince and Kate Moss attend Glastonbury Festival at Worthy Farm on June 25, 2010 in Glastonbury, England.
PALM SPRINGS, CA - APRIL 13: (L-R) Musician Joe Jonas, model Alessandra Ambrosio, actress AnnaSophia Robb, and musician Nick Jonas attend the FIJI Water At Lacoste L!VE Coachella Desert Pool Party on April 13, 2013 in Palm Springs, California.
PALM SPRINGS, CA - APRIL 14: Actress Kate Bosworth attends Mulberry BBQ Pool Party at Coachella at the Parker Palm Springs on April 14, 2012 in Palm Springs, California.
INDIO, CA - APRIL 19: Actress Kate Bosworth (L) and model James Rousseau attend the 2009 Coachella Valley Music & Arts Festival April 19, 2009 in Indio, California.
THERMAL, CA - APRIL 13: Singer Katy Perry attends LACOSTE L!VE 4th Annual Desert Pool Party on April 13, 2013 in Thermal, California.
INDIO, CA - APRIL 18: Actress Kristen Stewart attends the LACOSTE Pool Party during the 2010 Coachella Valley Music & Arts Festival on April 18, 2010 in Indio, California.
INDIO, CA - APRIL 15: Nicky Hilton attends Day 1 of the Coachella Valley Music & Arts Festival 2011 held at the Empire Polo Club on April 15, 2011 in Indio, California.
GLASTONBURY, ENGLAND - JUNE 28: Liam Gallagher and Nicole Appleton pose backstage at day 2 of the 2013 Glastonbury Festival at Worthy Farm on June 28, 2013 in Glastonbury, England.
CHELMSFORD, UNITED KINGDOM - AUGUST 22: Pixie Lott sighting on day one of the V Festival at Hylands Park on August 22, 2009 in Chelmsford, England.
GLASTONBURY, ENGLAND - JUNE 29: Rita Ora attends day 3 of the 2013 Glastonbury Festival at Worthy Farm on June 29, 2013 in Glastonbury, England.
PHILADELPHIA, PA - SEPTEMBER 02: Director Ron Howard poses with Beyonce Knowles-Carter and Jay-Z backstage during Budweiser Made In America Festival Benefiting The United Way - Day 2 at Benjamin Franklin Parkway on September 2, 2012 in Philadelphia, Pennsylvania.
GLASTONBURY, UNITED KINGDOM - JUNE 28: Sienna Miller attends the Glastonbury Festival of Contemporary Performing Arts at Worthy Farm, Pilton on June 28, 2013 in Glastonbury, England.
GLASTONBURY, ENGLAND - JUNE 30: Model Suki Waterhouse is pictured during day 4 of the 2013 Glastonbury Festival at Worthy Farm on June 30, 2013 in Glastonbury, England.
LONDON - JULY 04: Teresa Palmer and Russell Brand pose behind the main stage in the O2 VIP Lounge during Day Two of the O2 Wireless Festival in Hyde Park on July 4, 2008 in London, England.
INDIO, CA - APRIL 15: Actress Vanessa Hudgens attends Day 3 of the 2012 Coachella Music Festival at Empire Polo Club on April 15, 2012 in Indio, California.
INDIO, CA - APRIL 15: TV personality Whitney Port attends Day 1 of the Coachella Valley Music & Arts Festival 2011 held at the Empire Polo Club on April 15, 2011 in Indio, California.