Country megastar Carrie Underwood, Julian Lennon (John Lennon's son with his first wife Cynthia) and actor Johnny Depp make guest appearances on "Music From Another Dimension!", the new album from Boston hard rock legends AEROSMITH. Underwood duets with AEROSMITH singer Steven Tyler on a crossover ballad titled "Beautiful", a move which guitarist Joe Perry was skeptical about at first before eventually being won over. "Their voices matched up really well," Perry tells RollingStone.com in a new interview. "It doesn't sound forced. It was just right." Lennon contributed harmony vocals to "Love Three Times a Day", which Tyler describes to RollingStone.com as "BEATLES-que." "He's such a sweet fucking guy," Tyler says. "And he's John's first son with that voice and sense of humor — gimme a break!" Depp laid down backing vocals on a Perry-penned track called "Freedom Fighter", which the guitarist said will either appear the regular album or be released as a bonus track on a later deluxe edition of the CD.

"Music From Another Dimension!" also features a guest appearance by guitarist Rick Dufay, who briefly replaced AEROSMITH's Brad Whitford in the early Eighties. Dufay joined the band on a cover of THE TEMPTATIONS' 1975 hit "Shakey Ground", which Tyler had originally intended to include on a solo album.

"Legendary Child" video: