That's All Right Mama is widely regarded as the birth of rock 'n' roll

Presley's That's All Right Mama was never officially released in the UK.

It will be released in the UK as a CD single and as a 10-inch vinyl record. Only 5,000 copies will be pressed.

The vinyl release will be available only in HMV stores and will cost £3.99. If the record goes to number one, it will be Presley's 19th, a UK record.

Monday is the 50th anniversary of the That's All Right Mama's recording at Sun Studios in Memphis on 5 July 1954.

The song is widely regarded as heralding the start of the rock 'n' roll age.

The record will come with its original b-side, Blue Moon of Kentucky.

24-hour Elvis

Its re-release comes two years after the release of a remixed version of Presley's song A Little Less Conversation.

"Given the enduring appeal of Elvis - and the significance of his first recording - we're sure there is going to be enormous demand for this special edition," said HMV's product director Steve Gallant.

Meanwhile, a radio station in the US playing Presley's music 24 hours a day will launch on Friday.

The commercial-free Elvis Radio will begin with a broadcast from Memphis, Tennessee, where thousands of Elvis fans are expected to gather to commemorate That's All Right Mama's recording.