Miley Cyrus is determined to show us she's all grown up from her former Disney star self.

The 20-year-old singer/actress took to Twitter over the weekend to display her increasingly punk rock style, tweeting photos of her and a gaggle of friends acting silly for the camera in skimpy, rocker-inspired outfits.

Cyrus flaunted her toned tummy in a crop top, baggy black shorts, stiletto sandals and a studded leather biker jacket, sticking her tongue out and throwing up peace signs for a posed photo and tweeting, "Girl in boys clothing. ♦♦♦"

Visibly absent from the photos was her engagement ring, given to her by reportedly on-again-off-again fiancé Liam Hemsworth.

The next day after her Instagram photoshoot, Miley was spotted puffing on a suspicious-looking cigarette on the balcony of her Miami Hotel room -- and again, with no engagement ring in sight.

Cyrus has undergone some dramatic style transformations over the years, donning increasingly edgier looks: from trading in her long dark locks for a bleach blond pixie cut, to her love of sideboob and tattoos, to her questionable, bondage-inspired outfits.

Check out the photos below and tell us what you think of Miley's punk rock look.

miley cyrus photos

miley cyrus twitter

Take a look at Miley's recent style transformation:

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  • December 9. 2011

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  • August 23, 2012

  • February 9, 2013

    BEVERLY HILLS, CA - FEBRUARY 09: Singer Miley Cyrus arrives at Clive Davis & The Recording Academy's 2013 Pre-GRAMMY Gala and Salute to Industry Icons honoring Antonio 'L.A.' Reid at The Beverly Hilton Hotel on February 9, 2013 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)

  • February 11, 2013

    NEW YORK, NY - FEBRUARY 14: Miley Cyrus poses backstage at the Marc Jacobs Collection Fall 2013 fashion show during Mercedes-Benz Fashion Week at New York Armory on February 14, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images for Marc Jacobs)

  • February 24, 2013

    WEST HOLLYWOOD, CA - FEBRUARY 24: Singer Miley Cyrus attends the 21st Annual Elton John AIDS Foundation Academy Awards Viewing Party at West Hollywood Park on February 24, 2013 in West Hollywood, California. (Photo by Jamie McCarthy/Getty Images for EJAF)

  • May 6, 2013

    NEW YORK, NY - MAY 06: Miley Cyrus attends the Costume Institute Gala for the 'PUNK: Chaos to Couture' exhibition at the Metropolitan Museum of Art on May 6, 2013 in New York City. (Photo by Jamie McCarthy/Getty Images for The Huffington Post)

  • May 19, 2013

    LAS VEGAS, NV - MAY 19: Miley Cyrus arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jeff Bottari/Getty Images)

  • June 12, 2013

    LOS ANGELES, CA - JUNE 12: Actress/recording artist Miley Cyrus attends the Myspace Event at the El Rey Theatre on June 12, 2013 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)

  • June 29, 2013

    MIAMI BEACH, FL - JUNE 29: Miley Cyrus poses at the iHeartRadio Ultimate Pool Party Presented by VISIT FLORIDA at Fontainebleau's BleauLive in Miami on June 29, 2013 in Miami Beach, Florida. (Photo by John Parra/Getty Images for Clear Channel)

  • August 4, 2013

  • August 11, 2013

    UNIVERSAL CITY, CA - AUGUST 11: Singer Miley Cyrus attends the Teen Choice Awards 2013 at Gibson Amphitheatre on August 11, 2013 in Universal City, California. (Photo by Jason Merritt/Getty Images)

  • August 22, 2013

  • August 25, 2013

    NEW YORK, NY - AUGUST 25: (EXCLUSIVE COVERAGE) Miley Cyrus attends the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Larry Busacca/Getty Images for MTV)