Howard Stern sends fans into a tizzy after unexpectedly canceling radio show for 'personal day'

Give the guy a break!

Howard Stern cancelled his radio show to take a "personal day" on Wednesday -- and the bombshell news sent fans into a tizzy. Fans claimed the 63-year-old radio personality has never cancelled his show since it began in 1985.

"I have listened to the #HowardStern show since the 80s... NEVER canceled a show before! I am very concerned about the reason," one Twitter used claimed.

26 PHOTOS
Howard Stern out and about
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Howard Stern out and about
NEW YORK, NY - DECEMBER 07: Howard Stern and Beth Ostrosky attend Cleveland Cavaliers vs New York Knicks game at Madison Square Garden on December 7, 2016 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - SEPTEMBER 10: Howard Stern impersonator, Stewart Brodian poses at the 69 presentation during MADE Fashion Week September 2016 at Milk Studios on September 10, 2016 in New York City. (Photo by Mireya Acierto/Getty Images)
NEW YORK, NY - MARCH 24: Beth Ostrosky Stern and husband Howard Stern pose at the opening night arrivals for 'Bright Star' on Broadway at The Cort Theatre on March 24, 2016 in New York City. (Photo by Bruce Glikas/Bruce Glikas/FilmMagic)
NEW YORK, NY - JUNE 19: Howard Stern and Beth Ostrosky Stern are seen in Midtown on June 19, 2016 in New York City. (Photo by Alo Ceballos/GC Images)
NEW YORK, NY - MARCH 24: Howard Stern and Beth Stern attends the Broadway Opening Night Performance of 'Bright Star' at the Cort Theatre on March 24, 2016 in New York City. (Photo by Walter McBride/WireImage)
NEW YORK, NY - NOVEMBER 20: Howard Stern attends the 2015 North Shore Animal League America Gala at The Pierre Hotel on November 20, 2015 in New York City. (Photo by Laura Cavanaugh/FilmMagic)
NEW YORK, NY - NOVEMBER 20: Howard Stern, Beth Stern attends the 2015 North Shore Animal League America Gala at The Pierre Hotel on November 20, 2015 in New York City. (Photo by Nicholas Hunt/Getty Images)
JIMMY KIMMEL LIVE - ABC's 'Jimmy Kimmel Live' returned to the host's hometown of Brooklyn, New York for five original shows which tape live from the Brooklyn Academy of Music's Howard Gilman Opera House. The guests for FRIDAY, OCTOBER 23 included radio & TV personality Howard Stern ('The Howard Stern Show') and musical guest Public Enemy. (Randy Holmes/ABC via Getty Images)
NEW YORK, NY - NOVEMBER 08: Howard Stern attends the Broadway Opening Night Performance of 'Allegiance' at the Longacre Theatre on November 8 ,2015 in New York City. (Photo by Walter McBride/WireImage)
AMERICA'S GOT TALENT -- Episode 1026 -- Pictured: Howard Stern -- (Photo by: Virginia Sherwood/NBC/NBCU Photo Bank via Getty Images)
NEW YORK - AUGUST 11: Howard Stern attends 'America's Got Talent' Season 10 Pre-Show Red Carpet Event at Radio City Music Hall on August 11, 2015 in New York City. PHOTOGRAPH BY Photo Image Press / Barcroft Media (Photo credit should read Photo Image Press / Barcroft Med via Getty Images)
EAST HAMPTON, NY - JULY 24: Howard Stern and Beth Stern attend the 'Mission Impossible: Rogue Nation' screening at United Artists East Hampton Cinema on July 24, 2015 in East Hampton, New York. (Photo by Steven A Henry/WireImage)
HOLLYWOOD, CA - APRIL 08: TV/Radio personality Howard Stern arrives at the 'America's Got Talent' Season 10 red carpet event at Dolby Theatre on April 8, 2015 in Hollywood, California.(Photo by Jeffrey Mayer/WireImage)
HOLLYWOOD, CA - APRIL 08: Howard Stern arrives at the 'America's Got Talent' Season 10 Red Carpet event at Dolby Theatre on April 8, 2015 in Hollywood, California. (Photo by Gregg DeGuire/WireImage)
NEW YORK, NY - APRIL 28: (L-R) Howard Stern, Billy Joel and Robin Quivers attend SiriusXM's Town Hall with Billy Joel hosted by Howard Stern at The Cutting Room on April 28, 2014 in New York City. (Photo by Larry Busacca/Getty Images for SiriusXM)
AMERICA'S GOT TALENT -- Madison Square Garden Auditions -- Pictured: (l-r) Howard Stern, Heidi Klum, Nick Cannon, Melanie Brown (Mel B), Howie Mandel -- (Photo by: Craig Blankenhorn/NBC/NBCU Photo Bank via Getty Images)
HOLLYWOOD, CA - APRIL 22: Radio/TV personality Howard Stern arrives at 'America's Got Talent' red carpet event at the Dolby Theatre on April 22, 2014 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CA - APRIL 22: Howard Stern attends 'America's Got Talent' Red Carpet Event held at the Dolby Theater on April 22, 2014 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
NEWARK, NJ - FEBRUARY 20: Howard Stern attends Season 9 of America's Got Talent auditions at New Jersey Performing Arts Center on February 20, 2014 in Newark, New Jersey. (Photo by Paul Zimmerman/WireImage)
NEWARK, NJ - FEBRUARY 20: Howard Stern attends the 'America's Got Talent' Season 9 photo call at the New Jersey Performing Arts Center on February 20, 2014 in Newark, New Jersey. (Photo by D Dipasupil/FilmMagic)
NEW YORK, NY - JANUARY 31: Howard Stern speaks onstage at 'Howard Stern's Birthday Bash' presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for SiriusXM)
NEW YORK, NY - JANUARY 31: Howard Stern speaks onstage at 'Howard Stern's Birthday Bash' presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for SiriusXM)
NEW YORK, NY - JANUARY 31: Robin Quivers and Howard Stern attend 'Howard Stern's Birthday Bash' presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Theo Wargo/Getty Images for SiriusXM)
NEW YORK, NY - JANUARY 31: Howard Stern and Beth Ostrosky Stern attend 'Howard Stern's Birthday Bash' presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Larry Busacca/Getty Images for SiriusXM)
NEW YORK, NY - JANUARY 31: Howard Stern and Beth Stern attend 'Howard Stern's Birthday Bash' presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for SiriusXM)
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Another wrote: "Peace and love to my hero @HowardStern, who has missed a live show for the first time ever this morning. I hope everything is ok."

Stern's absence also sparked many theories on Reddit -- from problems with his health to legal issues with Sirius after he aired a women's confidential call with the IRS.

Some have also speculated that it may have to do with his parents, specifically his 93-year-old father.

"Just this year Howard said the only way he'd cancel a show is if a parent died," one Reddit user pointed out.

The "Howard Stern Show" has yet to give a reason for Stern's absence. He's set to return to the airwaves on Monday.

17 PHOTOS
Howard Stern Show
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Howard Stern Show
JIMMY KIMMEL LIVE - 'Jimmy Kimmel Live' airs every weeknight, (12:00 - 1:06 a.m., ET), following 'Nightline,' packed with hilarious comedy bits and features a diverse lineup of guests including celebrities, athletes, musicians, comedians and humorous human interest subjects. The guests for TUESDAY, OCTOBER 30 included Howard Stern ('The Howard Stern Show'), actor Tracy Morgan ('30 Rock') and musical guest Sharon Jones & the Dap-Kings. (Photo by Jeff Neira/ABC via Getty Images) HOWARD STERN, JIMMY KIMMEL
Howard Stern at Private Parts book signing at Barnes and Noble, New York, October 14, 1993. (Photo by Steve Eichner/Getty Images)
Howard Stern at the Notting Hill Premiere, New York, May 13, 1999. (Photo by Steve Eichner/Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode 816 -- Pictured: (l-r) Adult film actresses Nikki Taylor and Janine Lindemulder, radio personality Howard Stern, and film critics Gene Siskel and Roger Ebert during an interview with host Jay Leno on November 30, 1995 -- (Photo by: Margaret C. Norton/NBC/NBCU Photo Bank via Getty Images)
LOS ANGELES, CA - MAY 27: Executive Producer of The Howard Stern Show Gary Dell'Abate speaks during Celebrity Superfan Roundtable on Howard Stern's exclusive SiriusXM Channel Howard 101 at Sonos Studio on May 27, 2014 in Los Angeles, California. (Photo by Mike Windle/Getty Images for SiriusXM)
sal governale and richard christy
beetlejuice and Gary Garver
Jan 03, 2006; New York, NY, USA; CEO of Sirius Satellite Radio Inc. (SIRI) MEL KARMAZIN (R) and shock jock HOWARD STERN at the NASDAQ opening bell in New York. Jan 9th will mark the debut of 'The Howard Stern Show' on Sirius Satellite Radio Inc. (SIRI). Mandatory Credit: Photo by John Marshall Mantel/ZUMA Press. (©) Copyright 2006 by John Mantel
Howard Stern
Feb. 1, 2012 - New York, New York, U.S. - Radio host HOWARD STERN arrives for his appearance on 'The Late Show With David Letterman' held at the Ed Sullivan Theater. (Credit Image: © Nancy Kaszerman/ZUMAPRESS.com)
Mar. 14, 2006 - K47204AR.HOWARD STERN ARRIVES AT THE DAVID LETTERMAN SHOW ED SULLIVAN THEATRE , NEW YORK CITY 03-13-2006. ANDREA RENAULT-(Credit Image: © Globe Photos/ZUMAPRESS.com)
NEW YORK, NY - NOVEMBER 20: Howard Stern arrives to the 'Late Show With David Letterman' at the Ed Sullivan Theater on November 20, 2013 in New York City. (Photo by James Devaney/WireImage)
TODAY -- Pictured: (l-r) Howard Stern and Matt Lauer appear on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
NEW YORK, NY - JUNE 17: Howard Stern and Jimmy Fallon during a taping of 'Late Night With Jimmy Fallon' at Rockefeller Center on June 17, 2013 in New York City. (Photo by Theo Wargo/Getty Images)
AMERICA'S GOT TALENT -- Season:8 -- Pictured: (l-r) Howie Mandel, Mel B, Howard Stern, Heidi Klum, Nick Cannon -- (Photo by: Andrew Eccles/NBC/NBCU Photo Bank via Getty Images)
UNITED STATES - JULY 01: press conference for the Howard Stern show (Photo by The LIFE Picture Collection/Getty Images)
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