20 Hottest Female Celebrities Under Thirty

Ariana Grande

Ariana Grande shot to fame with her role on Nickelodeon, but the 21-year-old has become insanely popular this past year and has been showing less and less clothing as her popularity rises. She is tiny and has a great body, so work it!

Emma Watson

Emma Watson is another one of those celebrities that we watched grow up, as she starred in the Harry Potter movies. She is now 24 years old and she is not only hot, but she is intelligent and currently attending grad school. Smart and pretty is a winner in anyone’s book.