Kristin Cavallari is just one of the latest celebrities to post a "selfie" on her Instagram page.
Showing off her baby bump during a pregnancy workout, the 27-year-old star captioned the photo, "Gym selfie. Baby bump getting big!"
As one of the most popular photographic trends of our time, "selfies" have undoubtedly taken the celebrity world by storm. Kim Kardashian, Cara Delevingne, Miley Cyrus and Heidi Klum are some of the most notable followers of the trend, while even Prince William and Barack Obama have been caught in a snap.
The official definition of the word, which became the Oxford Dictionaries' Word of the Year in 2013, means "a photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website".
Click on the photo below for the full gallery of celebrity "selfies".