The actress' sudden passing at the age of 32, left many puzzled — then her husband died in the exact same way five months later, leaving more questions than answers.

The King of Rock 'n' Roll visited the White House in 1970 with one goal: to have Nixon grant him a federal narc badge.

The highly-anticipated May 1965 rematch between the heavyweight champions almost didn't happen.

The royal and musician's camaraderie was like any other, filled with laughter, love — and an epic fight.

The world watched as the "Rehab" singer lost control of her life, ending in her untimely passing at age 27.

Lansbury was a stage and screen star, and her decision to transition to television was a big career gamble.

The ‘Star Wars’ heroine and the singer-songwriter of Simon & Garfunkel fame connected right away, but their subsequent relationship was often rocky.

The Italian fashion designer was coming home from a neighborhood walk when a madman appeared out of nowhere and shot him dead on the steps of his beloved Miami Beach mansion.

Dancers Rob Pilatus and Fab Morvan brought the band's songs to life — without singing a single note.

While their romance was filled with headline-grabbing drama, their love endured for decades until the 'Charlie Angels' star's death.

The actor was beloved by millions, but he had to live a double life, concealing his sexuality to secure his career.

The Queen frontman's dental emergency opened the door for the punk rockers' foul-mouthed introduction to the world on live television.

Thanks to a friend lending the royal his clothes, Diana was able to go incognito and have a carefree night out on the town.

Reynolds and Fisher were in a seemingly happy marriage with two children until he blindsided the actress and left her for her best friend, Taylor.

Singer Chynna Phillips wrote the lyrics about her struggle with addiction and remembering to "take life one day at a time."

Backed by an ambitious stage mom, the street boys from Manhattan’s Upper East Side set sail as singers before hitting their stride as comedic maestros.

The musician scribbled a bunch of words about breakfast foods in place of lyrics and months later, turned the tune into "Yesterday."

Wepner's 1975 fight with Muhammad Ali motivated Sylvester Stallone to write the movie about a fighting underdog.

What started as a twitch in his finger turned into a life-changing fight for the 'Back to the Future' star.

The actor was just weeks away from the premiere of 'Exit the Dragon' when he suddenly — and shockingly — died in Hong Kong.

The two groups were at completely different points in their careers when an unlikely collaboration changed the courses of both of their histories.

Playing alien Mork on an episode of the sitcom was a star-making role for the up-and-coming actor, whose comedic genius was evident from the moment he stepped on the set.

The Fleetwood Mac singer put Petty on a pedestal and yearned to be just like him, and her admiration turned into a lifelong friendship that lasted until his death in 2017.

The alt-rock group found its roots in Seattle's post-punk scene, before taking flight on the vocals of San Diego surfer-songwriter Eddie Vedder.