Rihanna Topless: Singer Shares Post-Halloween Look (PHOTO, NSFW)

PHOTO: Rihanna Goes Topless
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Rihanna undressed from her Bride of Mary Jane outfit (get it?) on Halloween night, but seemed to have forgotten to take off her veil. On Thursday, the 24-year-old singer shared an Instagram photo of herself topless in bed while still wearing the sheer green veil she donned for her marijuana-themed costume the night before, at her Halloween party in West Hollywood. (Also there? Ex-boyfriend Chris Brown, controversially dressed as an Arab terrorist.)

The "We Found Love" singer wasn't the only celebrity to have the bright green idea: Lady Gaga also wore a Halloween costume dressed up as a cannabis plant.

"The morning after! Hello November," Rihanna shared on her Instragram feed.

Rihanna's Halloween outfit the night before: The Bridge of Mary.

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Before You Go

Celebrities In Halloween Costumes 2012
Katy Perry (01 of48)
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Katy Perry as Jane Lane and Shannon Woodward as Daria. (credit:Katy Perry/Twiiter)
Debra Messing(02 of48)
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"HAPPY HALLOWEEN!! Me and Mariska starting the night!! #boo," the "Smash" star tweeted Wednesday. (credit:Debra Messing/Twitter)
Darren Criss(03 of48)
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Darren Criss is a boy scout and probably a big fan of "Moonrise Kingdom." (credit:PacificCoastNews)
Jenni 'JWoww' Farley, Roger Mathews(04 of48)
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We never thought we'd say it, but the "Jersey Shore" star and her fiancé positively geeked it out. (credit:PacificCoastNews)
Christina Milian (05 of48)
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No sleight of hand here. Christina Milian is the Queen of Hearts. (credit:PacificCoastNews)
Stacy Keibler(06 of48)
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George Clooney's girlfriend is "Black Swan." (credit:PacificCoastNews)
Tish Cyrus, Brandi Cyrus(07 of48)
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Pop starlet Miley Cyrus' mum and sister Tish Cyrus and Brandi Cyrus are all dressed up for Halloween as they head to the Roosevelt hotel for a party in Hollywood. (credit:PacificCoastNews)
Jeremy Piven(08 of48)
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Jeremy Piven as Che Guevara at the Playboy Mansion Halloween Party in Beverly Hills, California on October 27th, 2012. (credit:FameFlynet)
Sacha Baron Cohen(09 of48)
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Sacha Baron Cohen donned a bizarre monkey-cow costume. (credit:FameFlynet)
P. Diddy(10 of48)
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P. Diddy rocked out at the Playboy Mansion Halloween Party in Beverly Hills, California on October 27th, 2012. (credit:FameFlynet)
Brandon Davis(11 of48)
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Brandon Davis at the Playboy Mansion Halloween Party in Beverly Hills, California on October 27th, 2012. (credit:FameFlynet)
Liam Payne(12 of48)
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One Direction singer Liam Payne does his best Batman in London. (credit:Pacific Coast News)
Lucy Hale(13 of48)
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Lucy Hale as a unicorn. (credit:Lucy Hale/Twitter)
Shenae Grimes, Chris March(14 of48)
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In this Image released by Mattel, actress Shenae Grimes, from the series "90210", left, has a fitting of her Monster High Frankie Stein Halloween costume created by "Project Runway" alum Chris March, Wednesday, Oct. 17, 2012, in El Segundo, Calif. Grimes will be attending "Glee" cast member Matthew Morrison's 3rd Annual Halloween Bash, dressed as Frankie Stein, daughter of Frankenstein, from the popular Monster High franchise. This year, the popular Halloween party will be sponsored by Monster High. (AP Photo/Mattel, Rene Macura) (credit:AP)
Heidi Klum (15 of48)
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Heidi Klum gets fitted for her 13th annual Halloween party at finale sponsored by HobNob Wines, Svedka Vodka And Smartwater on September 3, 2012 in New York City. (credit:Getty Images)
Sarah Hyland(16 of48)
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Sarah Hyland as Spinelli from "Recess." (credit:Sarah Hyland/Twitter)
Stacy Keibler (17 of48)
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Actress/model Stacy Keibler arrives at Hyde Bellagio at the Bellagio to host a Halloween masquerade party on October 27, 2012 in Las Vegas, Nevada. (credit:Getty Images)
Kim Kardashian(18 of48)
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Kim Kardashian attends 2nd Annual Midori Green Halloween Party at Avenue on October 27, 2012 in New York City dressed as a mermaid. (credit:Getty Images)
Nicole Scherzinger(19 of48)
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Nicole Scherzinger as a vampire. (credit:James Curley/Coalition Pictures)
Kim Kardashian(20 of48)
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Kim Kardashian as a leopard. (credit:Kim Kardashian/Twitter)
Holly Madison(21 of48)
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Holly Madison as Sleeping Beauty. (credit:Holly Madison/Twitter)
Fergie(22 of48)
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Fergie as Lindsay Lohan. (credit:Fergie/Twitter)
Christina Milian(23 of48)
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Christina Milian as Sulley. (credit:Christina Milian/Twitter)
Fergie & Josh Duhamel(24 of48)
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Fergie & Josh Duhamel as Angelyne & Dennis Woodruff. (credit:FameFlynet)
Christina Aguilera(25 of48)
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Christina Aguilera as ??? (credit:Pacific Coast News)
Paris Hilton(26 of48)
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Paris Hilton as Alice. (credit:X17Online)
Kris Jenner(27 of48)
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Kris Jenner as Wonder Woman. (credit:Kris Jenner/Twitter)
Ashley Benson(28 of48)
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Ashley Benson as Tweedle Dee (or Dumb). (credit:Ashley Benson/Twitter)
Hugh Hefner(29 of48)
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Hugh Hefner as a vampire. (credit:Hugh Hefner/Twitter)
Holly Madison(30 of48)
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Holly Madison as the Cheshire Cat. (credit:Holly Madison/Twitter)
Jessica Alba, Cash Warren, & Honor Warren(31 of48)
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The Incredibles (credit:Jessica Alba/Twitter)
Lauren Conrad(32 of48)
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(credit:Lauren Conrad/Twitter)
Hilary Duff(33 of48)
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Hilary Duff in a Día de los Muertos costume. (credit:Hilary Duff/Twitter)
Kim Kardashian(34 of48)
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Kim Kardashian as Kris Jenner. (credit:Kim Kardashian/Twitter)
Fergie(35 of48)
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Fergie as a sexy cat. (credit:Fergie/Twitter)
Ryan Seacrest & Julianne Hough(36 of48)
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Bonnie & Clyde (credit:Julianne Hough/Instagram)
Julie Bowen(37 of48)
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Julie Bowen as a scary Bo Peep. (credit:Julie Bowen/WhoSay)
Genevieve Jones & Nicky Hilton (38 of48)
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Genevieve Jones & Nicky Hilton as a KISS member and a leopard. (credit:Genevieve Jones/Twitter)
Adam Lambert(39 of48)
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Adam Lambert as a vampire. (credit:Adam Lambert/Twitter)
Chord Overstreet(40 of48)
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(credit:Chortd Overstreet/Twitter)
Heidi Montag & Crystal Harris (41 of48)
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(credit:Heidi Montag /Twitter)
Jesse McCartney(42 of48)
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(credit:Jesse McCartney/Twitter)
Diddy & Holly Robinson Peete(43 of48)
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As Prince. (credit:Holly Robinson Peete/Twitter)
Bella Thorne(44 of48)
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Bella Thorne as a vampire bride. (credit:Bella Thorne/Twitter)
Liam Payne(45 of48)
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Liam Payne as Batman. (credit:Liam Payne/Twitter)
Shanae Grimes(46 of48)
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Shanae Grimes as a skeleton. (credit:Josh Beech/Twitter)
Scott Disick(47 of48)
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Scott Disick as Patrick Bateman. (credit:Getty Images)
Nicole Richie(48 of48)
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Nicole Richie and friends as Wilderness Girls from "Troop Beverly Hill." (credit:Nicole Richie/Twitter)