Is Taylor Swift a mean girl? Grizzly Bear frontman slams her on Twitter

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Taylor Swift Apologizes to Nicki Minaj over VMA Twitter Feud

Looks like Katy Perry isn't the only one Taylor Swift has bad blood with.

After apologizing to Nicki Minaj last week following their testy MTV VMAs Twitter exchange -- which incited a shady response from Katy Perry -- it appears it's now open season for other artists to come out of the woodwork to challenge Taylor. Surprisingly, her latest adversary is Edward Droste, frontman for the indie-rock group Grizzly Bear.

It all started back in February, when Droste tweeted about a "terribly calculated and mean" celebrity, though the tweets have now been deleted. "Met a celebrity I always speculated was terribly calculated and mean, and they exceeded all my expectations of rudeness and arrogance. HATE" Droste wrote.

Photos of Taylor and her posse of famous girl friends:

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Taylor Swift and her famous friends
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Is Taylor Swift a mean girl? Grizzly Bear frontman slams her on Twitter
Taylor Swift and Selena Gomez during the 2013 MTV Video Music Awards at the Barclay Center on Sunday, Aug. 25, 2013 in New York. (Photo by Frank Micelotta/Invision/AP)
DETROIT, MI - MAY 30: Musician Taylor Swift (L) and model Gigi Hadid perform on stage during the 1989 World Tour Live at Ford Field on May 30, 2015 in Detroit, Michigan. (Photo by Larry Busacca/LP5/Getty Images for TAS)
Zendaya, from left, Hailee Steinfeld, Taylor Swift, Lily Aldridge, and Martha Hunt arrive at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 17, 2015, in Las Vegas. (Photo by Eric Jamison/Invision/AP)
Singer Taylor Swift, center, performs as model Karlie Kloss walks the runway at the Victoria's Secret fashion show in London, Tuesday, Dec. 2, 2014. (Photo by Joel Ryan/Invision/AP)
WEST HOLLYWOOD, CA - JUNE 16: Taylor Swift and Selena Gomez seen out on a sunny day in West Hollywood, California on June 16, 2015. Credit: John Misa/MediaPunch/IPX
NEW YORK, NY - NOVEMBER 22: Taylor Swift and Selena Gomez perform onstage during the 'Speak Now World Tour' at Madison Square Garden on November 22, 2011 in New York City. Taylor Swift wrapped up the North American leg of her SPEAK NOW WORLD TOUR with two sold-out shows at Madison Square Garden this week. In 2011, the tour played to capacity crowds in stadiums and arenas over 98 shows in 17 countries spanning three continents, and will continue in 2012 with shows Australia and New Zealand. (Photo by Larry Busacca/Getty Images)
DETROIT, MI - MAY 30: (L-R) Model Martha Hunt, musician Taylor Swift, and model Gigi Hadid perform on stage during the 1989 World Tour Live at Ford Field on May 30, 2015 in Detroit, Michigan. (Photo by Larry Busacca/LP5/Getty Images for TAS)
NEW YORK - MAY 29: Taylor Swift, Gigi Hadid, and Martha Hunt seen May 29, 2015 in New York City. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
Taylor Swift and Gigi Hadid enjoy a Sunday afternoon hike together in LA, 10 May 2015. 11 May 2015. Vantage News/IPx
LONDON, ENGLAND - DECEMBER 02: Taylor Swift, Martha Hunt and Karlie Kloss attend the after party for the annual Victoria's Secret fashion show at Earls Court on December 2, 2014 in London, England. (Photo by Pascal Le Segretain/Getty Images)
LAS VEGAS, NV - MAY 17: Model Martha Hunt (L) and recording artist Taylor Swift introduce a performance by Van Halen during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
LONDON, ENGLAND - DECEMBER 02: Taylor Swift performs as model Karlie Kloss walks the runway during the 2014 Victoria's Secret Fashion Show at Earl's Court Exhibition Centre on December 2, 2014 in London, England. (Photo by Dimitrios Kambouris/Getty Images for Victoria's Secret)
Lorde, left, and Taylor Swift arrive at the 16th annual InStyle and Warner Bros. Golden Globes afterparty at the Beverly Hilton Hotel on Sunday, Jan. 11, 2015, in Beverly Hills, Calif. (Photo by Matt Sayles/Invision/AP)
LOS ANGELES, CA - NOVEMBER 23: (L-R) Actress Selena Gomez, singer Taylor Swift and model Karlie Kloss attend the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Christopher Polk/AMA2014/Getty Images for DCP)
BEVERLY HILLS, CA - JANUARY 11: Actress/director Lena Dunham (L) and singer/songwriter Taylor Swift attend HBO's Official Golden Globe Awards After Party at The Beverly Hilton Hotel on January 11, 2015 in Beverly Hills, California. (Photo by Jeff Kravitz/FilmMagic)
LOS ANGELES, CA - AUGUST 30: Selena Gomez and Taylor Swift arrives at the 2015 MTV Video Music Awards at Microsoft Theater on August 30, 2015 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - AUGUST 30: Taylor Swift (L) and Nicki Minaj perform onstage during the 2015 MTV Video Music Awards held at Microsoft Theater on August 30, 2015 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
WEST HOLLYWOOD, CA - AUGUST 30: (Exclusive Coverage) Martha Hunt, Lily Aldridge, Selena Gomez, Taylor Swift, Hailee Steinfeld and Serayah McNeill attend the Republic Records VMA after party at Ysabel on August 30, 2015 in West Hollywood, California. (Photo by Kevin Mazur/Getty Images)
LOS ANGELES, CA - AUGUST 30: (L-R) Model Gigi Hadid, model Martha Hunt, actress Hailee Steinfeld, actress Cara Delevingne, actress/singer Selena Gomez, recording artist Taylor Swift, actress Serayah, actress Mariska Hargitay, model Lily Aldridge and model Karlie Kloss attend the 2015 MTV Video Music Awards at Microsoft Theater on August 30, 2015 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - AUGUST 30: Taylor Swift and Kim Kardashian West attend the 2015 MTV Video Music Awards at Microsoft Theater on August 30, 2015 in Los Angeles, California. (Photo by Kevin Mazur/MTV1415/WireImage)
LOS ANGELES, CA - AUGUST 30: (L-R) Recording artist Taylor Swift, models Gigi Hadid, Karlie Kloss and Lily Aldridge attend the 2015 MTV Video Music Awards at Microsoft Theater on August 30, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images)
LOS ANGELES, CA - AUGUST 22: Singer-songwriters Taylor Swift (L) and Mary J. Blige perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 22, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 22: (L-R) Actor Matt Leblanc, singer-songwriter Taylor Swift, comedian Chris Rock and actor Sean O'Pry perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 22, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for TAS)
CHICAGO, IL - JULY 19: Taylor Swift performs with Andreja Pejic and Lily Donaldson during The 1989 Tour at Soldier Field on July 19, 2015 in Chicago, Illinois. (Photo by Daniel Boczarski/LP5/Getty Images for TAS)
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WATCH: Nicki Minaj Says Taylor Swift Apologized to Her Over the Phone

But he was also afraid of the celeb's obvious power.

"If you know please don't @ the person, they see all and have the capacity and desire to destroy, seriously, please just know and lol. ... This is an eternal blind item, bc I'm too petrified of their insane power. No need to speculate, just HAD to voice my disgust."

On Sunday, Droste pretty much confirmed that he was referring to Taylor, when he tweeted a picture of a report titled, "Mean Girl Taylor's Friendship Rules!" The report claims that the 25-year-old "Blank Space" singer had strict rules to make sure her celeb pals like Kendall Jenner, Gigi Hadid and Karlie Kloss didn't upstage her when she brought them up on stage during her Hyde Park stadium show.

"Taylor had a dress code for everyone to make sure she wasn't upstaged," the report reads. "And they were all told to stand a certain number of feet behind Taylor at all times, not to speak unless spoken to, and not to discuss Taylor's private life in interviews."

Droste commented, "Obsessed that people are catching on."

He then retweeted a Billboard article about Taylor's lawyers threatening her former guitar teacher with legal action over his website name, but perhaps most tellingly of his feelings about her, retweeted a particularly harsh message reading, "I want to just put out here that I've always known Taylor Swift was immensely evil as she is powerful."

Ouch.

UPDATE: After passionate Taylor Swift fans swarmed Froste with hundreds of tweets condemning the singer for speaking badly about their idol, he responded with a barrage of increasingly-negative tweets about her:

WATCH: Kelly Clarkson Covers 'Blank Space' and Taylor Swift Loves It!

Taylor has yet to respond, but she did make headlines at her recent 1989 World Tour stop in Foxborough, Massachusetts over the weekend when a "left shark" came on stage -- which some saw as a dig at Katy Perry. Watch below:

Did Taylor Swift Throw Some Left Shark Shade at Katy Perry On Stage?
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