The split -- first reported by Us Weekly-- comes as a surprise, as engagement rumors were swirling around the couple in March, when the "Womanizer" singer was spotted wearing a diamond ring on her engagement finger while on vacation in Hawaii with Charlie and her two sons Jayden, 8, and Sean, 9.
Britney also told People in March that she's "the happiest [she's] ever been," and that Charlie got along well with Jayden and Sean. "They relate to him really well and they have fun together," she said. "He's refreshing to be around and really lighthearted."
The pair's last public appearance together was at the 2015 Billboard Music Awards last month.
"Let's all agree @britneyspears Is the most beautiful," Charlie gushed on his Instagram.
Britney Spears and Charlie Ebersol split after 8 months together
UNITED STATES - SEPTEMBER 28: Britney Spears sits at a screening of 'Drive Me Crazy' at Union Square Theater with Robbie Carrico. (Photo by Richard Corkery/NY Daily News Archive via Getty Images)
LAS VEGAS - DECEMBER 08: Musician Britney Spears and husband Kevin Federline arrive at the 2004 Billboard Music Awards at the MGM Grand Garden Arena on December 8, 2004 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
Britney Spears arrives with her boyfriend Adnan Ghalib (R) at the Los Angeles County Superior courthouse 14 January 2008 for a hearing regarding visitation rights for her two sons that she has with ex-husband Kevin Federline. AFP PHOTO/Gabriel BOUYS (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)
Jason Trawick (L) and Britney Spears arrive at the 2011 MTV Video Music Awards (VMAs) August 28, 2011 at the Nokia Theatre in downtown Los Angeles, California. AFP PHOTO / Frederic J. Brown (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
LOS ANGELES, CA - SEPTEMBER 11: Singer Britney Spears (L) and fiance agent Jason Trawick appear at the premiere of Fox's 'The X Factor' Season 2 and handprint ceremony at the Chinese Theatre on September 11, 2012 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
WEST HOLLYWOOD, CA - MARCH 02: Recording artist Britney Spears (L) and David Lucado attend Neuro at the 22nd Annual Elton John AIDS Foundation Academy Awards Viewing Party at The City of West Hollywood Park on March 2, 2014 in West Hollywood, California. (Photo by Charley Gallay/Getty Images for Neuro)