I saw this play today at Loveland's Rialto Theatre and thought it was great! The kid who played Elvis emulated him almost to a 't' (what I know of Elvis anyway). The acting was excellent throughout the entire cast.

Here's their promo:
Into a square little town in a square little state rides a guitar-playing roustabout who changes everything and everyone he meets in this hip-swiveling, lip-curling musical fantasy that'll have you jumpin' out of your blue suede shoes. With such classics as Heartbreak Hotel, Jailhouse Rock, I Can't Help Falling In Love, and Don't Be Cruel, get ready to rock out this summer to a show inspired by and featuring the songs of Elvis Presley.