Def Leppard: Rock "The Tonight Show"

Def Leppard are getting in a few promotional plugs before launching their summer tour schedule.

The band is plugging both its upcoming US tour with Heart as well as its new live album, “Mirrorball,”

The 2-disc set features a mix of live Leppard classics - recorded throughout The Sparkle Lounge Tour, three brand new studio songs, and a bonus DVD that contains live performances and intimate backstage footage captured on the road.

Of the new songs, guitarist Phil Collen told an interviewer at the NAMM show in January, “It’s got three new studio tracks. We wanted five, but we couldn’t finish them in time.”

The three new tracks are “Undefeated,” “Kings Of The World,” and “It’s All About Believin’”, due out next month.