Miley's lil sis turned 18, and is now exposing herself to fans.

Miley's little sister Noah Cyrus turned 18 years old earlier this month, and she's already acting out. The younger sister of Miley Cyrus stepped out last night at the Cardi B X Fashion Nova event at Boulevard 3 in Hollywood.

Look at the outfit that she chose to wear.

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Noah Cyrus’s first television role was on the TV show ‘Doc’ in 2003 - where she was just 3 years old. She played the role of Gracie Hebert in nine episodes of the show which starred her father Billy Ray.

In 2008, she landed a couple of small roles in her sister’s TV series ‘Hannah Montana’ on Disney Channel. She appeared in 6 episodes of the show.

But Noah's big dream came when she landed the title role as a voice artist/ actor in the English dubbed animated Japanese film ‘Ponyo’. In the movie she sang the title song as a little girl alongside the music artist Frankie Jonas, which became a hit children’s song and a year later she launched a web show called ‘The Noie and Ems Show’ alongside Emily Grace Reaves.

Most of Noah's fans are girls under the age of 13.

Noah, who was in a relationship with rapper Lil Xan from July until September of this year, has released a handful of singles.

Her hit tunes include Make Me (Cry), I'm Stuck, Again, My Way and Live Or Die.

Last month, she performed at the Belasco Theater in Los Angeles.