Out now via iTunes is Def Leppard's new acoustic medley of songs played live during the band's 2012 concerts. The seven-and-a-half-minute medley is a studio recording of songs they played unplugged on the road.

Frontman Joe Elliott told AOL's Noisecreep, "We decided to change the acoustic section of the set for the Rock Of Ages tour, and what we ended up with just grew into a really magical experience every night. We all enjoyed doing it so much and it was so well received by our audience, we decided to do a studio recording of it. I think it complements our main body of work very well."

Def Leppard kicks off its nine-date Las Vegas gig on March 22nd at The Joint at Hard Rock Hotel and Casino. The run, dubbed "Viva Hysteria!," will feature the band performing its 1987 classic Hysteria album in its entirety. “We’re very happy to be part of what I call the first wave of rockers to take Vegas back from the lounge singers — Wayne Newton and his type,” Def Leppard frontman Joe Elliott told USA Today.

Careful, Joe. Wayne's a made Vegas man. You already have a one-armed drummer. You don't want to end up a guitarist with busted knees!

Here's the band doing the medley live in September...