Miley Cyrus kisses Patrick Schwarzenegger during the game between the California Golden Bears and the USC Trojans at Los Angeles Memorial Coliseum on Nov. 13, 2014, in Los Angeles.

Actor Johnny Depp leans over to kiss actress Amber Heard as they attend the premiere of "3 Days To Kill," at Arclight Cinemas, Feb. 12, 2014, in Hollywood, Calif.

Former DGA President and Director Taylor Hackford kisses actress Kerry Washington as theyattend the 20th Annual Screen Actors Guild Awards at The Shrine Auditorium on Jan. 18, 2014, in Los Angeles.

Entertainment host Jeff Beacher gets a kiss from Miley Cyrus as they arrive at the premiere of Beacher's Madhouse Las Vegas at the MGM Grand Hotel/Casino on Dec. 27, 2013, in Las Vegas.

Olivia Newton-John and her husband John Easterling kiss as they arrive at the inaugural ONJ Gala to raise funds for the Olivia Newton-John Cancer & Wellness Centre at the Regent Plaza Ballroom on Sept. 20, 2013, in Melbourne, Australia.

Singer Alicia Keys, left, and producer Swizz Beatz arrive at the 55th annual Grammy Awards at the Staples Center on Feb. 10, 2013, in Los Angeles.

Actress Melissa McCarthy, right, and her husband, Ben Falcone, arrive at the premiere of "Identity Thief" at the Village Theatre on Feb. 4, 2013, in Los Angeles.

Robert De Niro and his wife, Grace Hightower, pose during the actor's hand and footprint ceremony in front of TCL Chinese Theater in Hollywood, Calif., on Feb. 4, 2013.

Actor Bruce Willis and wife Emma Heming attend the German premiere of "A Good Day to Die Hard" at Cinestar Potsdamer Platz on Feb. 4, 2013, in Berlin.

Actor Hugh Jackman, right, kisses actress Anne Hathaway during the 65th Annual Directors Guild of America Awards at Ray Dolby Ballroom at Hollywood & Highland on Feb. 2, 2013, in Los Angeles.

From left, former NFL player Hank Baskett and wife Kendra Wilkinson attend the Tenth Annual Leather & Laces Super Bowl Party on Feb. 1, 2013, in New Orleans.

Television personality, actress and designer Kristin Cavallari joins Gillette's 15-city Kiss & Tell Live National Experiment, asking women whether a kiss with stubble or smooth shaven skin is better, at Pioneer Court on Jan. 28, 2013, in Chicago.

Kelly Osbourne attends the 19th annual Screen Actors Guild Awards at The Shrine Auditorium on Jan. 27, 2013, in Los Angeles.

Actress Ashley Tisdale attends the premiere of Relativity Media's "Movie 43" at TCL Chinese Theatre on Jan. 23, 2013, in Hollywood, Calif.

Beyonce, winner Best Traditional R&B Performance, poses in the press room at the 55th Annual GRAMMY Awards at Staples Center on Feb. 10, 2013, in Los Angeles.

TV personality Ryan Seacrest, left, and girlfriend Julianne Hough arrive at the 70th Annual Golden Globe Awards held at The Beverly Hilton Hotel on Jan. 13, 2013, in Beverly Hills, Calif.

Australian actress and member of the Feature Film Jury Nicole Kidman (R) and her husband, Australian country singer Keith Urban kiss on May 19, 2013 as they arrive for the screening of the film "Inside Llewyn Davis" presented in Competition at the 66th edition of the Cannes Film Festival in Cannes. Cannes, one of the world's top film festivals, opened on May 15 and will climax on May 26 with awards selected by a jury headed this year by Hollywood legend Steven Spielberg. AFP PHOTO / ANNE-CHRISTINE POUJOULAT (Photo credit should read ANNE-CHRISTINE POUJOULAT/AFP/Getty Images)

Actors Kerry Washington and Christoph Waltz attend the "Django Unchained" photo call at Hotel de Rome on Jan. 8, 2013, in Berlin.

Actress Helen Mirren arrives at the 24th annual Palm Springs International Film Festival Awards Gala at the Palm Springs Convention Center on Jan. 5, 2013, in Palm Springs, Calif.

Actress AnnaLynne McCord arrives to the after party for the premiere of "Four Stories" at The W Hotel on Dec. 4, 2012, in Westwood, Calif.

Actress Lindsay Lohan arrives at a party to celebrate Lifetime's "Liz & Dick" at the Beverly Hills Hotel on Nov. 20, 2012, in Beverly Hills, Calif.

Singer Cyndi Lauper attends the 40th American Music Awards held at Nokia Theatre L.A. Live on Nov. 18, 2012, in Los Angeles.

Actress Salma Hayek poses next to the beach closet dedicated to her on the Promenade des Planches during the 38th Deauville American Film Festival on Sept. 8, 2012, in Deauville, France.

Actor David Hasselhoff kisses girlfriend Hayley Roberts as they arrives for the premiere of "Keith Lemon: The Film" at London's Leicester Square on Aug. 20, 2012.

Actress Olivia Munn arrives at the premiere of "Magic Mike" during the 2012 Los Angeles Film Festival at Regal Cinemas L.A. Live on June 24, 2012, in Los Angeles.

Actress Julia Roberts is seen onstage at the 40th AFI Life Achievement Award honoring Shirley MacLaine held at Sony Pictures Studios on June 7, 2012, in Culver City, Calif.

Singer Janelle Monae arrives at the 2012 MTV Movie Awards held at Gibson Amphitheatre on June 3, 2012 in Universal City, Calif.

Justin Timberlake smiles as Jessica Biel gives him a kiss coutside as the Los Angeles Lakers take on the Denver Nuggets in Game Seven of the Western Conference Quarterfinals in the 2012 NBA Playoffs on May 12, 2012, at the Staples Center in Los Angeles.

Mariah Carey and her husband Nick Cannon during the their vows renewal ceremony photo call on April 27, 2012, in Paris.

Singer Ciara arrives at the Valentino Rodeo Drive Flagship store opening on March 27, 2012, in Beverly Hills, Calif.

Actress Malin Ackerman arrives at the 20th Annual Elton John AIDS Foundation's Oscar Viewing Party held at West Hollywood Park on Feb. 26, 2012, in West Hollywood, Calif.

Actress Vanessa Hudgens blows a kiss before a press conference for her film "Journey 2: The Mysterious Island" in Mexico City on Jan. 27, 2012.

Nicole Kidman receives a kiss from Elton John on the red carpet for the 69th annual Golden Globe Awards in Beverly Hills, Calif., Jan. 15, 2012.

Nicole "Snooki" Polizzi attends the Team Snooki Boxing press conference at McFadden's Saloon on Jan. 12, 2012, in New York.

Actress Nina Dobrev, winner of Favorite TV Drama Actress for "The Vampire Diaries," blows a kiss onstage at the 2012 People's Choice Awards on Jan. 11, 2012, in Los Angeles.

Jennifer Hudson attends the Good Housekeeping cocktail party celebrating her new book "I Got This: How I Changed My Ways and Lost What Weighed Me Down" on Jan. 10, 2012, in New York.

Lady Gaga prepares to push the button to drop the ball at New Year's Eve 2012 in Times Square on Dec. 31, 2011, in New York.

TV personality Khloe Kardashian attends Z100's Jingle Ball 2011 on Dec. 9, 2011, in New York.

Singer Fergie arrives at the premiere of "New Year's Eve" on Dec. 5, 2011, in Hollywood, Calif.

Actress Zoe Saldana arrives at the Trevor Project's 2011 Trevor Live! at The Hollywood Palladium on Dec. 4, 2011, in Los Angeles.

Actress Taraji P. Henson poses in the media room at The Grammy Nominations Concert Live! Countdown to Music's Biggest Night on Nov. 30, 2011, in Los Angeles.

Model Lily Aldridge arrives at the 2011 Victoria's Secret Fashion Show Viewing Party on Nov. 29, 2011, in Costa Mesa, Calif.

Musician Hillary Scott of Lady Antebellum, winner of Favorite Country Band/Duo/Group Award, poses in the press room at the 2011 American Music Awards on Nov. 20, 2011, in Los Angeles.

Emma Watson blows a kiss as she attends the British premiere of her film "My Week with Marilyn" in central London on Nov. 20, 2011.

Model Petra Nemcova attends the Princess Grace Awards Gala at Cipriani 42nd Street on Nov. 1, 2011, in New York.

Actor/director Al Pacino, left, poses with actress Jessica Chastain during the photo call for "Wilde Salome" during the 68th Venice Film Festival on Sept. 4, 2011, in Venice, Italy.