It was 56 years ago Saturday (January 12th, 1957) that Elvis Presley recorded "All Shook Up," which went on to become his sixth Number One hit, topping the charts for nine weeks. Presley recorded the song at Radio Recorders in Hollywood, during a three-day session, which included both gospel recordings and songs eventually featured in his second motion picture, Loving You.

Presley and his band, which included guitarist Scotty Moore, bassist Bill Black, drummer DJ Fontana, and backing vocalists the Jordanaires, took ten takes to perfect the song. The unique tapping heard on the track is Presley's hand slapping the back of his Martin acoustic guitar, with his ring finger accentuating the beat.

• Even today, Paul McCartney still considers himself to be a heavy-duty early Elvis fan -- and has always named "All Shook Up" as one of his all-time favorites: "I love a lot of Elvis' tracks -- 'All Shook Up' is one of my big favorites. I love 'Love Me Tender.' You could choose anything off his first albums and I'd love that. Anything till he went in the army, and I went off him after that. It just never seemed the same to me. It seemed like they'd tamed him."
• "All Shook Up" went on to be ranked the Number One single of 1957. The tune was featured in Presley's setlists extensively throughout the '70s -- one of the few of "The King's" '50s hits to make the transition into his Las Vegas-era shows.

CHECK IT OUT: Elvis performing "All Shook Up" on the '68 Comeback Special:

Paul McCartney On Elvis Presley's Music