Brittany Murphy was an American actress and singer. Despite being at the top of her fame in the late '90s and 2000s, Murphy suspiciously died on December 20, 2009. Her death is still an ongoing investigation.

Recently, Britney Spears, who just ended her conservatorship, questioned Murphy's death in a now-deleted Instagram post. "I saw this online today …. is anybody else curious ??? She died at 32..." Spears captioned it. This comes after the HBO documentary, What Happened, Brittany Murphy? was released last year.

The actress may have been gone for over a decade, but we are going to look back at her life, particularly her career and what made her so beloved amongst fans. Brittany Murphy was in many roles people would consider cult-classics today, including Clueless, Uptown Girl, Just Married, Little Black Book and more, with some of them not even making the top 10. Here are Brittany Murphy's ten greatest roles, according to IMDb rating, from least to greatest.

10 'Drop Dead Gorgeous' - IMDb Rating 6.6

Ranking at number 10, Brittany Murphy played Lisa Swenson, one of the contestants in a teen pageant competition, in the movie, Drop Dead Gorgeous. The film was rated with 6.6 stars out of 10 on IMDb. Drop Dead Gorgeous was one of her more popular films, so it makes sense that it cracked the top ten.

9 'David And Lisa' - IMDb Rating 6.7

Coming in at number 9 is David and Lisa. It was a TV movie about, "David, a withdrawn but apparent near genius, who fears being touched. Brittney Murphy plays Lisa, a young woman seemingly suffering from split personalities who speaks only in rhymes and withdraws from anyone who doesn't speak to her likewise," according to IMDb. On the same site, it is also rated at 6.7 stars out of 10.

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8 'Murphy Brown' - IMDb Rating 6.8

Murphy Brown was Brittany Murphy's debut acting role and also her first television appearance. IMDb rates the show at 6.8 stars out of 10. She played Frank's sister in one episode and the role went uncredited.

7 'Freeway' - IMDb Rating 6.8

Freeway was a 1996 independent film that also starred Kiefer Sutherland and Reese Witherspoon. Murphy played Rhonda, a lesbian that Vanessa Lutz (Witherspoon) meets in jail. Despite not doing well at the box office, the movie received favorable reviews, with a 6.8 out of 10 rating.

6 'Clueless' - IMDb Rating 6.9

Clueless was Brittany Murphy's breakout role, so it is shocking to find out that the film was only rated at a 6.9 out of 10. She played Tai Fraiser, a shy girl who turned into a beautiful swan after Cher and Dionne give her a make-over. Her character is best known for the line, "You're a virgin who can't drive." It may not be her highest-rated film, but it is definitely one of her most popular amongst fans.

RELATED: 20 Photos That Make Us Miss Brittany Murphy

5 'Something In Between' - IMDb Rating 7.1

Something In Between was a 2002 short film where Brittany Murphy played Sky. It has a 7.1 out of 10 stars rating and also stars Keram Malicki-Sanchez and April Grace. Not much is known about the film.

4 '8 Mile' - IMDb Rating 7.2

Coming in a number four is 8 Mile, with 7.2 out of 10 stars on IMDb. Brittany Murphy played Alex Laterno, an aspiring model who hopes to find a way into Net York City. The film also stars Eminem, who is her love interest. The 2002 movie was one of the biggest movies Murphy acted in during her peak in Hollywood. It earned a little over $240k.

RELATED: The Recently-Revealed Truth About Brittany Murphy's Life And Death

3 'Futurama: The Beasts With A Billion Backs' - IMDb Rating 7.2

It appears as a lot of Brittany Murphy's voiceover roles were rated higher than other on-screen roles. Futurama: The Beasts With A Billion Backs was rated a 7.2 out of 10 on IMDb. It was a 2008 movie based on the TV show of the same name. Murphy played Colleen O'Hallahan, the chief of police and Fry's girlfriend.

2 'King Of The Hill' - IMDb Rating 7.5

One role fans might not be familiar with is Brittany Murphy's voice work on King of the Hill. She voiced the character, Luanne Platter and other various voice characters from 1997 until her death in 2009. Platter is the college-aged niece of the Hills, who moves in with the family. This role is rated 7.5 out of 10 on IMDb, making it her second-highest role.

1 'Sin City' - IMDb Rating 8.0

Sin City, is rated as Brittany Murphy's greatest role on IMDb with an 8 out of 10-star rating. The role is not her most popular, but with over 750k votes, it was voted her best, even if she was not the main character in it. In Sin City, Murphy plays Shellie, a bar maid at Kadie's and Dwight McCarthy's occasional girlfriend.

NEXT: The Cast Of The 90s Teen Classic 'Clueless': Ranked By Current Net Worth