Television personalities Kim Kardashian and Willie Geist take a selfie during "The Tonight Show with Jay Leno."
Celebs taking selfies —
Television personalities Kim Kardashian and Willie Geist take a selfie during "The Tonight Show with Jay Leno."
Paul Drinkwater/NBC/NBCU Photo Bank/getty images
Academy Awards host Ellen DeGeneres takes a moment during the show to orchestrate a selfie with a group of stars. Bradley Cooper, seen in the foreground, was holding the phone at the time. "If only Bradley's arm was longer," <a href="index.php?page=&url=https%3A%2F%2Ftwitter.com%2FTheEllenShow%2Fstatus%2F440322224407314432" target="_blank" target="_blank">DeGeneres tweeted</a>. "Best photo ever." It reportedly became the most retweeted post of all time.
Celebs taking selfies —
Academy Awards host Ellen DeGeneres takes a moment during the show to orchestrate a selfie with a group of stars. Bradley Cooper, seen in the foreground, was holding the phone at the time. "If only Bradley's arm was longer," DeGeneres tweeted. "Best photo ever." It reportedly became the most retweeted post of all time.
twitter/theellenshow
Denmark's Prime Minister Helle Thorning-Schmidt snaps a selfie with British Prime Minister David Cameron and U.S. President Barack Obama during the memorial service of former South African President Nelson Mandela in Johannesburg on Tuesday, December 10.
Celebs taking selfies —
Denmark's Prime Minister Helle Thorning-Schmidt snaps a selfie with British Prime Minister David Cameron and U.S. President Barack Obama during the memorial service of former South African President Nelson Mandela in Johannesburg on Tuesday, December 10.
ROBERTO SCHMIDT/AFP/Getty Images
Tom Hanks takes a selfie with fellow actor Steve Martin at the 2013 Governors Awards.
Celebs taking selfies —
Tom Hanks takes a selfie with fellow actor Steve Martin at the 2013 Governors Awards.
Kevin Winter/Getty Images
Track star Usain Bolt takes a picture of himself under the Christ the Redeemer statue in Rio de Janeiro. Oxford defines a selfie as "a photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website."
Celebs taking selfies —
Track star Usain Bolt takes a picture of himself under the Christ the Redeemer statue in Rio de Janeiro. Oxford defines a selfie as "a photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website."
CHRISTOPHE SIMON/AFP/Getty Images
Singer Justin Bieber takes a selfie with a fan before appearing on NBC's "Today" show.
Celebs taking selfies —
Singer Justin Bieber takes a selfie with a fan before appearing on NBC's "Today" show.
Peter Kramer/NBC/NBC NewsWire/getty images
Actress Angelina Jolie takes a photo of herself with a fan's camera at the Paris premiere of "World War Z."
Celebs taking selfies —
Actress Angelina Jolie takes a photo of herself with a fan's camera at the Paris premiere of "World War Z."
Pascal Le Segretain/Getty Images For Paramount)
Actress Meryl Streep takes a photo of herself and Hillary Clinton after Clinton hosted a dinner for the Kennedy Center honorees in Washington.
Celebs taking selfies —
Actress Meryl Streep takes a photo of herself and Hillary Clinton after Clinton hosted a dinner for the Kennedy Center honorees in Washington.
Ron Sachs - Pool/Getty Images
Even political figures are getting in on the trend. Here, British Prime Minister David Cameron takes a photograph with Olympic volunteer Anita Akuwudike in London.
Celebs taking selfies —
Even political figures are getting in on the trend. Here, British Prime Minister David Cameron takes a photograph with Olympic volunteer Anita Akuwudike in London.
John STILLWELL/afp/getty images
Actor Ashton Kutcher poses in the audience during the 2010 People's Choice Awards.
Celebs taking selfies —
Actor Ashton Kutcher poses in the audience during the 2010 People's Choice Awards.
Christopher Polk/Getty Images for PCA
Now-retired tennis player Kim Clijsters takes a selfie with Caroline Wozniacki during an exhibition match in Hua Hin, Thailand.
Celebs taking selfies —
Now-retired tennis player Kim Clijsters takes a selfie with Caroline Wozniacki during an exhibition match in Hua Hin, Thailand.
Athit Perawongmetha/Getty Images
Actor Josh Duhamel takes a selfie at the Empire State Building in New York City.
Celebs taking selfies —
Actor Josh Duhamel takes a selfie at the Empire State Building in New York City.
Taylor Hill/FilmMagic/getty images
Actor Bradley Cooper poses for selfies with eager fans at the Los Angeles premiere of "The Hangover Part III."
Celebs taking selfies —
Actor Bradley Cooper poses for selfies with eager fans at the Los Angeles premiere of "The Hangover Part III."
FREDERIC J. BROWN/AFP/Getty Images
Kathie Lee Gifford, Kris Jenner and Hoda Kotb pose for a selfie on NBC's "Today" show.
Celebs taking selfies —
Kathie Lee Gifford, Kris Jenner and Hoda Kotb pose for a selfie on NBC's "Today" show.
Peter Kramer/NBC/NBC NewsWire/getty images
Selfies don't always have to be with other people. Director Zack Snyder takes a photo of himself in front of Action Comics No. 1 at the Superman 75 party in San Diego.
Celebs taking selfies —
Selfies don't always have to be with other people. Director Zack Snyder takes a photo of himself in front of Action Comics No. 1 at the Superman 75 party in San Diego.
Jerod Harris/Getty Images for DC Entertainment
Actor Ken Jeong takes a photo with a fan before appearing on NBC's "Today" show.
Celebs taking selfies —
Actor Ken Jeong takes a photo with a fan before appearing on NBC's "Today" show.
Peter Kramer/NBC/NBC NewsWire/getty images
Actor Sam Claflin poses for photos with fans in New York City.
Celebs taking selfies —
Actor Sam Claflin poses for photos with fans in New York City.
Ray Tamarra/Getty Images
After the Sky News People's Forum in August, then-Australian Prime Minister Kevin Rudd, left, and opposition leader Tony Abbott took a selfie with Nada Makdessi in Sydney. Abbott became prime minister in September.
Celebs taking selfies —
After the Sky News People's Forum in August, then-Australian Prime Minister Kevin Rudd, left, and opposition leader Tony Abbott took a selfie with Nada Makdessi in Sydney. Abbott became prime minister in September.
Lukas Coch - Pool/Getty Images
Musician Keith Urban takes a selfie with a fan before performing at NBC's "Today" show.
Celebs taking selfies —
Musician Keith Urban takes a selfie with a fan before performing at NBC's "Today" show.
Al Pereira/WireImage/getty images
Rep. Sean Duffy, R-Wisconsin, shoots a video selfie for his Facebook page before the start of a House GOP news conference in Washington.
Celebs taking selfies —
Rep. Sean Duffy, R-Wisconsin, shoots a video selfie for his Facebook page before the start of a House GOP news conference in Washington.
Bill Clark/CQ Roll Call/getty images
Actors Eric McCormack and Debra Messing take a selfie while appearing on NBC's "Today" show.
Celebs taking selfies —
Actors Eric McCormack and Debra Messing take a selfie while appearing on NBC's "Today" show.
Peter Kramer/NBC/NBC NewsWire/getty images
Duhamel and comedian JB Smoove take a selfie during a commercial break on "The Tonight Show with Jay Leno."
Celebs taking selfies —
Duhamel and comedian JB Smoove take a selfie during a commercial break on "The Tonight Show with Jay Leno."
Paul Drinkwater/NBC/NBCU Photo Bank/getty images