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Here are Dean and Frank singing one of the medleys they performed on their 1977 summer tour of New Jersey and New York nightclubs. It was the only time they hit the road together for an extended time. You can see how they liked to kid around during their medleys of great standards. They really had some fun on this segment from Dean's show.

The immortal Louis Prima was a Sicilian American singer, actor, songwriter, and master jazz trumpeter. He practically invented Vegas style lounge shows but by the 1970s he had fallen out of favor in the town he reinvigorated.

Here's Louis Prima, Gia Maione & Sam Butera when they were on Dean Martin's variety show in 1965.

Did you ever take a trip to fabulous Las Vegas in the 1970s? If so you may remember the sights in these home movies of glittering Sin City in 1976. Notice that Elvis was in town that night, a huge event back in the day. His shows were always solidly sold out.

Wayne Newton was at The Sands and if you were lucky enough to catch The Supremes that night opening for Alan King at Caesars Palace you saw one of their last shows as a group. Look at all of those empty lots and wide open spaces, now filled with the modern spectaculars of Vegas!

Speaking of Elvis, here's a taste of his Las Vegas live show in 1970, singing 'Polk Salad Annie.' Elvis hit Sin City in a big way in 1969 after his TV comeback special made him a hot commodity again, His triumphant Las Vegas engagement at the International Hotel solidified his role as The King. That first night Elvis walked out in front of a star studded audience that rose to their feet the moment he took the stage.

He became THE Las Vegas legend after that.

LAS VEGAS LEGENDS:

Frank Sinatra introduced John F. Kennedy to his audience in 1960 when the entertainer was in town shooting Ocean's 11. This is rare footage of that night.

Tom Jones electrified audiences in the 1970s with his dynamic live shows. He's still going strong! The ladies especially fell for Tom Jones' spectacular voice and his sensuous gyrations filled the seats at Caesars Palace.

The Supremes hit it big in Vegas after their 1960s TV specials opened them up to a wider audience. Even after Diana Ross left the group in 1970 they continued to play the showrooms, at least for a few more years.

Bobby Darin could be the greatest Vegas entertainer of all time, his live show was incredible and served as a major influence for Wayne Newton and others. Dig this crazy version of 'Beyond the Sea.'