Fox News Flash top entertainment and celebrity headlines are here. Phil Donahue and Marlo Thomas had a legendary marriage that lasted over four decades until his death on Sunday at age 88. Thomas shared a sweet post on Instagram dedicated to her late husband of 44 years, in a caption accompanying one of her favorite photos of the couple.

"I'm sure by now you've heard the very sad news that I lost my sweetheart last night, so I know you understand that I'll be stepping away from this page for a while to take care of myself and the many people who took care of Phil, and held him close to their hearts," Thomas wrote. She continued, thanking everyone for "the beautiful messages of love and support that have been coming in all day, and for the wonderful and generous way that you've let Phil and me share our life adventure with you over the years." Marlo Thomas thanked everyone for "the beautiful messages of love and support" after the death of her husband of 44 years, talk show host Phil Donahue.

(Sean Zanni/Getty Images for National Arts Club) TALK SHOW ICON PHIL DONAHUE DEAD AT 88 "As a man who spent his career loving his audiences, Phil got such a kick out of our cozy little community here, and I know he would be very touched by the heartwarming thoughts and memories you've been sharing." Thomas added, "Until I return, I wish you good health and happy days in the company of family and friends, and I hope that you will continue to hold close those you cherish most, just as I was.