Grace Kelly, the ice queen of Hollywood, was not as cool and composed as she appeared on screen.

Kelly was known to have affairs with several leading men in Hollywood, including Bing Crosby, Clark Gable, William Holden, and Frank Sinatra.

According to a report, Bing Crosby was left heartbroken after finding Kelly in bed with another actor, who had beaten him to the Best Actor Oscar.

Gore Vidal once said that Kelly “almost always laid the leading man,” and on this particular movie, she was rumored to be having affairs with four different men, but not Crosby.

Kelly had a reputation for pursuing older men, and it was usually attributed to her strained relationship with her overbearing and cold father.

She had affairs with Cooper and Gable, who were 28 years older, Crosby who was 26 years older, and Sinatra, who was 14 years older than her.

Kelly had an affair with her drama teacher, Alan Richardson, when she was just 18 years old.

Richardson ended the relationship when she showed off an emerald-studded bracelet from Prince Aly Khan, which had an X-rated meaning.

James Stewart was one of the few stars who did not have any rumors attached to him with Kelly.

This could be because his wife, Gloria Stewart, was always present on set.

Crosby and Kelly filmed The Country Girl together, and yet another affair ensued.

Crosby initially didn’t want Kelly for the role of his on-screen wife, thinking her too beautiful.

However, Kelly’s performance won her the Best Actress Oscar, and she started an affair with her leading man, Crosby, who used his friend Alan Ladd’s house for their assignations.

It became so frequent that Ladd apparently complained that “there must be hotels or motels…”

What Crosby didn’t know was that Kelly was also seeing actor William Holden, who had an infamously open marriage, as well as Clark Gable, and a brief dalliance with David Niven.

Niven famously revealed the affair on the Michael Parkinson show when he recalled meeting Kelly’s husband Prince Rainier of Monaco, who laddishly asked him who had been his best lover.

“Grace, of course,” Niven replied, before hastily adding: “Er, Gracie Fields.”

At the 1955 Oscar ceremony on March 30, Crosby went to Kelly’s hotel room at around 3 am, perhaps to distract himself from losing to Marlon Brando for On The Waterfront.

Hollywood commentator Darwin Porter said that Crosby “arrived for a showdown with Grace. Instead of that, he found a nvd3 Marlon in her bed.”

Apparently, the two men came to blows, and then Crosby found himself back on set opposite Kelly from January-March 1956 in High Society.

Although the couple sings the iconic ballad “True Love” to each other in the movie, it was his co-star Sinatra who apparently bedded the blonde beauty off-screen.

George Jacobs, Frank Sinatra’s personal valet from 1958 until 1968, was asked about the rumored affair but would only say the pair remained close and that Sinatra would later visit Monaco “to support her charity work.”