The Beatles, from left, Paul McCartney, George Harrison, John Lennon and Ringo Starr, play the Convention Center on Aug. 20, 1964. (Review-Journal archive)

Comedians Marty Allen, seated, and Steve Rossi, center, clown around with the Beatles — from left, John Lennon, George Harrison, Paul McCartney and Ringo Starr — in New York, where they both performed on “The Ed Sullivan Show” on Feb. 9, 1964. (Courtesy)

In this photo provided by the Las Vegas News Bureau, on August 20, 1964 the Beatles take the stage at Las Vegas Convention Center. Standing just below the stage, far right, with his arms up is Stan Irwin. Las Vegas legend Stan Irwin passed away today. Irwin was Entertainment Director and Vice President-General Manager for the Del Webb Entertainment Corporation and most notably led entertainment at the Sahara Hotel for many years where he was inst

The Beatles arriving in Las Vegas, 8-19-64. Las Vegas News Bureau photo.

The Beatles perform on stage at the Las Vegas Convention Center on August 20, 1964. (Courtesy Photo/Las Vegas Convention and Visitors Authority)

Police carry a young girl who fainted while The Beatles performed on stage at the Las Vegas Convention Center on August 20, 1964. (Courtesy Photo/Las Vegas Convention and Visitors Authority)

Jackie DeShannon performs at the Las Vegas Convention Center as one of the opening acts for The Beatles on August 20, 1964. (Courtesy Photo/Las Vegas Convention and Visitors Authority)

Liberace smilies along with adoring fans of The Beatles as they perform on stage at the Las Vegas Convention Center on August 20, 1964. (Courtesy Photo/Las Vegas Convention and Visitors Authority)

A young fan weeps while The Beatles perform on stage at the Las Vegas Convention Center on August 20, 1964. (Courtesy Photo/Las Vegas Convention and Visitors Authority)

FILE*** COURTESY HANDOUT PHOTO Members of the band The Beatles are shown in this handout photograph for the 1960s.

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Fans of the British Rock-n-Roll band The Beatles purchase concert tickets at the Las Vegas Convention Center, June 29, 1964. The group, which has inspired a certain amount of fanaticism that has been dubbed Beatlemania, is scheduled to perform two concerts in Las Vegas in August. (Terry Todd/Las Vegas Review-Journal)

A fan of the British Rock-n-Roll band The Beatles camps overnight outside the Las Vegas Convention Center, June 29, 1964, as she waits for concert tickets to go on sale. The group, which has inspired a certain amount of fanaticism that has been dubbed Beatlemania, is scheduled to perform two concerts in Las Vegas in August. (Terry Todd/Las Vegas Review-Journal)

Members of the British Rock-n-Roll band The Beatles are flanked by Las Vegas police officers as the are escorted to a waiting limousine at the Sahara hotel-casino in Las Vegas, Aug. 20, 1964, as screaming fans throng the streets between the hotel and the Las Vegas Convention Center where the band is scheduled to perform. The group,which has inspired a certain amount of fanaticism that has been dubbed Beatlemania, is scheduled to perform two conce

Fans of the British Rock-n-Roll band The Beatles line up to purchase concert tickets at the Las Vegas Convention Center, June 29, 1964. The group, which has inspired a certain amount of fanaticism that has been dubbed Beatlemania, is scheduled to perform two concerts in Las Vegas in August. (Terry Todd/Las Vegas Review-Journal)

The Beatles arriving in Las Vegas, 8-19-64. Las Vegas News Bureau photo.

Liberace smilies along with adoring fans of The Beatles as they perform on stage at the Las Vegas Convention Center on August 20, 1964. (Courtesy Photo/Las Vegas Convention and Visitors Authority)

Fans of the British Rock-n-Roll band The Beatles camp overnight outside the Las Vegas Convention Center, June 29, 1964, as they wait for concert tickets to go on sale. The group, which has inspired a certain amount of fanaticism that has been dubbed Beatlemania, is scheduled to perform two concerts in Las Vegas in August. (Terry Todd/Las Vegas Review-Journal)

Fans of the British Rock-n-Roll band The Beatles line up to purchase concert tickets at the Las Vegas Convention Center, June 29, 1964. The group, which has inspired a certain amount of fanaticism that has been dubbed Beatlemania, is scheduled to perform two concerts in Las Vegas in August. (Terry Todd/Las Vegas Review-Journal)

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Fans of the British Rock-n-Roll band The Beatles camp overnight outside the Las Vegas Convention Center, June 29, 1964, as they wait for concert tickets to go on sale. The group, which has inspired a certain amount of fanaticism that has been dubbed Beatlemania, is scheduled to perform two concerts in Las Vegas in August. (Terry Todd/Las Vegas Review-Journal)