
Pop star Katy Perry takes a selfie at the ABBA Museum in Stockholm, Sweden, on Saturday, March 21. "Got a Swedish education...," Perry said about the photo, which was taken in front of wax figures of the famous Swedish pop group.

With assistance from staff member Drew Hammill, House Minority Leader Nancy Pelosi takes a selfie with the three female members of the U.S. Supreme Court on Wednesday, March 18. From left are justices Elena Kagan, Ruth Bader Ginsburg and Sonia Sotomayor.

LL Cool J takes a selfie in front of, from left, singer Mary J. Blige, actor Terrence Howard and actress Taraji P. Henson on Thursday, March 19. "The Empire crew goes to war on #LipSyncBattle. Lol insane!" wrote LL, who hosts the show on Spike TV. The episode with the "Empire" stars airs April 2, he said.

Actress Maisie Williams snaps a selfie with fans in San Francisco as she attends the "Game of Thrones" premiere on Monday, March 23.

John Mayer's reflection is seen everywhere in this selfie that the musician posted to Instagram on Saturday, March 21. "Standoff," he wrote.

Actress Lena Dunham, center, takes a selfie with "Scandal" stars Katie Lowes and George Newbern on Saturday, March 21. Dunham guest-starred on the television show. "Dudes I am so sorry I spoiled the end of Scandal for some of my west coast friends!" Dunham wrote to her followers on Instagram. "I was so excited to share my long protected pics that I didn't consider that little time difference. Like all of you, I am a Scandal fan whose heart rate goes up and judgment goes down during a typical ep!"

Actor Kunal Nayyar posted this selfie to Instagram on Saturday, March 21. "Good Hair Day. #humidity," wrote "The Big Bang Theory" star.

Scientist Bill Nye poses for a student at the White House Science Fair on Monday, March 23.

A fan takes a selfie as Kansas basketball players walk to the court for practice Thursday, March 19, in Omaha, Nebraska.

"Rockin' black eye first day of work," actor John Stamos said on Saturday, March 21. "Baller or Ratchet? (Or dumb)."

R&B artist Usher poses for fans who spotted him in Dublin, Ireland, on Thursday, March 19.

Pop star Justin Bieber takes a selfie while attending an NBA game in Los Angeles on Friday, March 20.

A man takes a selfie on an aerial lift as tens of thousands of people celebrate the Newroz holiday Saturday, March 21, in Diyarbakir, Turkey.

Actress Elisabeth Moss stops for a fan's selfie Sunday, March 22, in New York City.

UFC champion Ronda Rousey squeezes between two fans in Rio de Janeiro on Friday, March 20.

"Me and my baby alright home watching the meek mills and friends homecoming concert live from Philly," said hip-hop mogul Sean "P. Diddy" Combs in this selfie he posted to Instagram on Saturday, March 21.

Singer Miley Cyrus attends an event Thursday, March 19, at the South by Southwest Festival in Austin, Texas.

Actor Vin Diesel takes a selfie with actress Nathalie Emmanuel on Saturday, March 21. He called his "Furious 7" co-star an "angel" on Instagram.

"Thinking of a master plan," actor Jussie Smollett said Monday, March 23, on Instagram. "Nah I'm lying... Shawty (and sleep) on my mind. Goodnight beautiful peeps."

Rocker Courtney Love takes a selfie with film director Brett Ratner on Saturday, March 21. She called him one of her top three favorite men in Hollywood.

Singer Kylie Minogue takes a selfie Wednesday, March 18, after a tour stop in Melbourne. "That was off the charts!!" she said on Instagram. "Thank you!!!"

A woman, right, tries to take a selfie with Pope Francis in the background Wednesday, March 18, in Vatican City.

Singer Mel B takes a selfie aboard a plane Saturday, March 21. "Bye bye NY hello LA," she wrote on Instagram. "Yippppeee fun time right now."

"Italian actors are just really really good looking," said actor Ben Stiller, right, in this selfie he posted Sunday, March 22, with the hashtag #Zoolander2.

Film director Lee Daniels takes a selfie with the "Queen of Soul," Aretha Franklin, on Sunday, March 22. "YES GOD! HAPPY BIRTHDAY MS.FRANKLIN!!!" wrote Daniels, who added the hashtag #longlivethequeen.

A woman uses a selfie stick on the outskirts of Wuhan, China, on Saturday, March 21.

"Last rehearsal for our last scene," actor Kevin McHale said during what he called the "#LastNightOfGlee" on Friday, March 20.

"Life is good!" wrote model Kate Upton in this selfie she took with her boyfriend, baseball player Justin Verlander, on Saturday, March 21.

Model Ruby Rose, who is openly gay, posted this selfie Thursday, March 19, with the caption "Gay-sha styles."

Actress Salma Hayek snaps a selfie in London on Monday, March 23.

A mother and daughter wear special glasses to help them view a solar eclipse Friday, March 20, in Swansea, Wales.

A woman takes a selfie during celebrations marking the spring equinox Saturday, March 21, at the Stonehenge monument in Wiltshire, England.

Television host Terrence J, left, takes a selfie at the White House with actor Kal Penn on Friday, March 20. Penn "saved my life yesterday," he wrote on Instagram. "I had 3% battery & he had a charger. Heroic." See 21 selfies from last week


