Dean Martin with Diana Lynn at the Flamingo pool, circa January-March 1950. They were in Las Vegas during the filming of My Friend Irma Goes West, which is the second movie they were co-stars in.

From the left, two De Castro Sisters, George Burns, Burns' daughter Sandra Burns Luckman, Nat King Cole, Ted Lewis, and the third De Castro Sister cutting Cole's birthday cake that reads, 'Happy Birthday Slugger' at the Sands Hotel on June 16, 1959. The Las Vegas News Bureau has captured thousands of celebrities enjoying their birthdays in Las Vegas.

From the left, Cary Grant, his wife Betsy Drake, Ray Bolger, and Grace Kelly enjoy Las Vegas' weather near the pool at the Sahara on April 11, 1955. A year later, Kelly would became Princess of Monaco by marrying Prince Rainier III in April 1956.

Mickey Rooney goofing off outside of the pool at the Riviera on June 13, 1955. According to the Las Vegas Sun, 'when Rooney hit the stages at the Flamingo, Riviera, Dunes, Sahara, Stardust, Caesars Palace, and other resorts with his longtime song-and-dance and comedic act, he attained legendary status that equaled – and in some cases surpassed –his brilliant and acclaimed work in Hollywood films, television and on Broadway.'

Cuban band leader Pérez Prado, also known as the 'King of Mambo' backstage at the Sahara on July 24, 1956. Historians consider Prado to be one of the founders of mambo, a bouncy blend of tropical music that became popular after WWII.

Frank Sinatra with Doris Day, left, and Lauren Bacall in the Copa Room at the Sands in Las Vegas on September 14, 1956.

Ernest Borgnine at the Riviera pool on April 1, 1956. Borgnine was a part of the Hollywood Autograph Show in Las Vegas in November 2011, and he utilized this picture, taken by the Las Vegas News Bureau, for his autographs.

Mother Teresa (then Sister Teresa) at the National Council of Catholic Women's Convention (NCCW) in the Las Vegas Convention Center on November 3, 1960. This was the only time Mother Teresa visited Las Vegas and it was important because it was the first time she left India since she arrived there in 1929. Her 1960 speech at the NCCW convention in Las Vegas was her introduction to the wider world.

Jack Benny playing his personalized slot machine at the Flamingo on July 15, 1958. This publicity shot was taken by the Las Vegas News Bureau to promote his show there.

Floyd Patterson with Judy Garland at the Dunes on July 17, 1963. Patterson was training for his fight against Sonny Liston on July 22, 1963. Celebrities, like Garland, often visited boxers while they were training. In fact, it was often part of a boxers contract that they train at a local casino before their fights as a way to increase tourism and draw celebrities to Las Vegas.

Clint Eastwood at the Sahara Health Club on September 17, 1964. Las Vegas News Bureau photographer Joe Buck took this photo for the Sahara, which they used as the cover for their in-house magazine The Saharan in November 1964.

Flip Wilson rides a tricycle during a publicity photo shoot outside of the Sahara on March 18, 1970.

Sugar Ray Robinson in the dressing room at the Sahara on February 4, 1953. While in Las Vegas he announced his retirement from boxing and put on a boxing clinic. The Sahara hotel put up a makeshift ring by the pool and Robinson offered instruction to local amateur fighters.

Ronald Reagan and his wife Nancy Reagan on The Last Frontier's boat on Lake Mead in Boulder City, Nevada on February 14, 1954. At the time, Reagan was an entertainer and performed at the Last Frontier, headlining with The Continentals, the Blackburn Twins, the Honey Brothers, and the Last Frontier's dancers, the Adorabelles.

Kenny Rogers with Dionne Warwick at The First Edition celebrity softball game in Las Vegas on June 2, 1974. Rogers was a frequent performer in Las Vegas and he hosted a series of charity softball games through the 1970s.

Elizabeth Taylor and her third husband Michael Wilding enjoyed the Las Vegas sun near the pool at the Sahara on March 7, 1956.

Keely Smith, Louis Prima, and their daughter Toni Prima posed for photos in their Las Vegas home with the Las Vegas News Bureau on May 7, 1956. Smith and Prima had a five-year residency in the Casbar Lounge at the Sahara.

Elvis Presley relaxed with his friends near the pool at the New Frontier on April 30, 1956. He was there to perform on a bill with Shecky Greene, but his first performance in Las Vegas did not go well. Despite his fame, he did not appeal to the middle-age crowd at the New Frontier and he would not perform in Las Vegas again until 1969.

Jane Powell, Noel Coward, and Zsa Zsa Gabor at the Desert Inn on July 7, 1955. Frank Sinatra had chartered a plane and flew in several celebrities to support Coward for his opening show at the Desert Inn, which ran for four weeks.

Groucho Marx and Nat King Cole at a party for the opening of the Tropicana on April 4, 1957. Opening night festivities were provided by Monte Proser's 'Tropicana Revue', a $250,000 musical starring Eddie Fisher in the Theatre Restaurant later renamed Fountain Theatre.

From left, Liza Minnelli, Betty Grable, and Carol Burnett were at a party for the opening of a new musical, Hello, Dolly!, which was hosted at the Riviera from December 1965-September 1966. Grable stared as Dolly.

Ed Sullivan, Tony Bennett, and Don Rickles posed for a photo at the opening night party for Tony Bennett's residency at the Riviera on October 26, 1971.

Tom Jones cuts a cake at his birthday party at Caesars Palace on June 5, 1974. He celebrated with, from left Joan Rivers, Joey Heatherton, Sonny Bono, Dionne Warwick, Debbie Reynolds, and Liberace.

Tony Curtis posed with the Caesars Palace goddesses to promote his appearance in Hollywood Palace, a weekly variety show at Caesars Palace, on November 2, 1967.