Famous stars when they were 18

Here's a look at some of the world's most famous celebrities when they were even younger. Some of them were already well-known and well-established, while others were just starting their careers. 18 years is a rite of passage into adulthood. You can vote, get married and get your license! At 18, amazing things happen. Here's what some of our favorite celebrities looked like at this age.

10 PHOTOS

1. Beyoncé.

Beyoncé was Beyoncé Knowles in 2000 and became fully known as the leader of Destiny's Child. She is captured here before performing at the Hard Rock Hotel & Casino on July 2, 2000, in Las Vegas, Nevada.

2. Leonardo DiCaprio.

Leonardo DiCaprio on a New York street in 1993. Next year, the young star will be nominated for an Academy Award for Best Supporting Actor for What's Eating Gilbert Grape.

3. Janet Jackson.

As a teenager, Janet Jackson was more of a television actress, but she was always musically gifted, like all members of her family. She was 18 or 19 years old when she posed for this photoshoot in 1985 in Los Angeles. And she was going to be a superstar.

4. Britney Spears.

Britney Spears was already a pop superstar at 18 after the release of Baby One More Time in 1999. Here she is at the 42nd Annual Grammy Awards in 2000.

5. Rihanna.

Rihanna's first album, Music of the Sun, was released when she was 17 in 2005. A Girl like Me will follow him next year and both have entered the top 10 Billboard charts. The singer is here for a promo in New York on March 18, 2006.

6. Mark Wahlberg.

Mark Wahlberg was probably 18 in this photo, taken backstage at New Kids On The Block in 1989. His brother Donnie was of course in the group. Mark followed in his footsteps and became a rapper before moving on to modeling and then acting.

7. Jennifer Aniston.

In 1990, Jennifer Aniston was 19 or 20 years old here. A few years later, she became a star on Friends, which debuted in 1994.

8. Charlize Theron.

Charlize Theron grew up far from Hollywood in Benoni, South Africa. Here she is in her childhood home with a tractor, 1992. Theron was 17 or 18 years old.

9. Nicole Kidman.

Another beauty, Nicole Kidman, had amazing curls when she was a rising star in Australia. She is pictured here in a photoshoot for her 1983 film Bandits on Bicycles. She was 17 years old, and friends, she could do freestyle!

10. Jared Leto.

Jared Leto was the bleached 18 or 19 years old in this photograph taken in 1990. The young actor then played bit parts on television, but his job paid off when he starred in 1994's My So-Called Life.