They were the golden couple of 1950s television sitcoms, with 40 million viewers tuning in each week to watch their hilarious antics and swoon-worthy love.
But behind closed doors Lucille Ball and Desi Arnaz had a tumultuous marriage that ultimately ended in a bitter divorce in 1960.
Lucie Arnaz, the couple's 67-year-old daughter, said the frequent arguments began to roll every time the cameras stopped.
Lucie Arnaz, the daughter of Lucille Ball and Desi Arnaz, reveals that her parents were c'fighting all the time' when the cameras stopped rolling of their hit show I Love Lucy
They were the golden couple of 1950s television sitcoms, with 40 million viewers tuning in each week to watch their hilarious antics and swoon-worthy love
'They were fighting all the time,' she told Closer Weekly. 'Their divorce was horrible. And then there was the alcoholism.'
'We didn't have any abuse, but we did go through some pretty hard stuff and that's why my parents didn't stay together.'
When the couple first met on the set of the 1940 film Too Many Girls, the Cuban bandleader was a rising star while Lucy had a resume full of forgettable films.
The pair fell madly in love, eloping within six months. But the happiness began to fray long before I Love Lucy made its way to television screens across America.
Lucy briefly filed for divorce in 1944, fed up with Desi's womanizing and constant drinking.
But Lucie has revealed that the couple's marriage was falling apart at the height of their fame. Pictured is Lucy, Desi, and their children Lucie and Desi Jr in 1953
Lucie (pictured with her brother in 2011) said the couple were falling apart in part due to her father's trouble with alcoholism
But the pair reconciled and, in 1950, Lucy insisted Desi play her husband after she was offered a starring television role in an adaptation of her hit radio show.
'At the time the consensus was, "What the hell do we want with a Latin bandleader who can't speak English?"', I Love Lucy writer Bob Weiskopf told People in 1991.
'But she wanted him because she knew that if he went on the road with the band, he'd be catting around all the time.'
'She wanted him at home, where she felt the marriage would have a better chance of lasting, which of course it did.'
Desi's legendary womanizing also briefly came to a halt after Lucy gave birth to Lucie, their first child, in 1951.
Soon the couple were a bonafide success with I Love Lucy, which won five Emmy Awards and was the most watched show in the country for four of its six seasons.
Lucie said the couple had a 'horrible' divorce in 1960, effectively ending their joint television career. The family is pictured here in 1959, a year before their split
The pair fell madly in love, eloping within six months, after they met on the set of a film in 1940. They are pictured here after reconciling as friends in 1970
But behind the scenes, everything was falling apart.
Keith Thibodeaux, who played Little Ricky on the show, recalled playing with their son Desi Jr in the family's backyard one day.
'We heard a lot of loud arguing and cursing and glass shattering and screaming, and we were scared,' he said.
'Desi Jr turned to me and said "There they go again"'. I was about nine, 10 years old.'
Thibodeaux also recalled an instance when his father, a family friend, and Lucy bumped into Ricky at a Palm Springs country club.
'She went to the lounge to have a drink, and Desi walked in with a couple of women on his arm. When he saw Lucy at the bar, he turned around and took off.'
Rumors regarding Desi's unfaithfulness eventually made their way into the magazine Confidential, and Lucy read an advance copy during a rehearsal day on the show.
Their marriage began to tear at the seams long before I Love Lucy hit the air. But Lucy insisted that