I was too young to ever see him in concert, but I can visualize the 'Vegas Elvis' working the stage whenever I hear Walk a Mile in My Shoes. One of the bonus tracks is an early performance of a future signature hit, Kentucky Rain, and another is a rehearsal of The Wonder of You, in which he swaps out the word 'inspiration,' causing the band (and me) to giggle when he croons, 'You give me hope and constipation'.
'On Stage' was recorded in February 1970, while 'Elvis In Person' comes from his August 1969 concerts. ('Elvis In Person' was initially released as the first disc of 'From Memphis to Vegas -- From Vegas to Memphis' in 1969, then reissued a year later as a single album.) You can hear the women shrieking when he busts out In the Ghetto, although I'm partial to his unexpected cover of the Bee Gees' Words.
Among the six bonus tracks here is a live rendition of Willie Nelson's Funny How Time Slips Away. Indeed, it is funny. But don't be mistaken -- this reissue is seriously cool.
Buy On Stage 2 CD Legacy Edition