Many of you were wondering last night about the young woman who livened up Carrie Underwood’s performance of “Last Name” with a face-melting guitar solo. Who was that righteous axe warrior, anyway? Question answered: Her name is Orianthi, she’s a 24-year-old Aussie, and guitar heroes including Carlos Santana, Prince, and Steve Vai reportedly agree that she rocks. Check out Orianthi’s MySpace here, relive last night’s “Last Name” below (skip to around 1:50 for the serious shredding), and get ready: Orianthi is signed to 19 Recordings/Geffen Records, with a debut album in the works. Anyone else psyched to hear it?