The world premiere of DEF LEPPARD's new single, 'Undefeated', took place earlier today on Planet Rock's Rob Birnie Show. The song is now streaming on YouTube below:

Def Leppard are set to release a brand new live album, Mirrorball, this summer featuring a mix of live classics (recorded throughout The Sparkle Lounge Tour), three brand new studio songs and a bonus DVD that contains energetic live performances and intimate backstage footage captured on the road.

Mirrorball is Def Leppard's first ever live album and features rock classics such as 'Animal', 'Pour Some Sugar On Me', 'Photograph', 'Nine Lives' and 'Rock Of Ages. The album also brings together three brand new studio tracks - 'Undefeated', 'Kings Of The Word' and 'It's All About Believin'.

The full Mirrorball tracklisting is as follows:

Disc 1:

'Rock! Rock! (Till You Drop)'

'Rocket'

'Animal'

'C'Mon C'Mon'

'Make Love Like A Man'

'Too Late For Love'

'Foolin'

'Nine Lives'

'Love Bites'

'Rock On'

Disc 2:

'Two Steps Behind'

'Bringin' On The Heartbreak'

'Switch 625'

'Hysteria'

'Armageddon It'

'Photograph'

'Pour Some Sugar On Me'

'Rock Of Ages'

'Let's Get Rocked'

'Action'

'Bad Actress'

'Undefeated' (new studio track)

'Kings Of The World' (new studio track)

'It's All About Believin' (new studio track)

Def Leppard's Mirrorball will be released through Bludgeon Riffola/Mailboat Records in the following territories on the following dates:

Germany/Switzerland/Austria - June 3rd

UK/Europe - June 6th

North America - coming this summer, exact date TBA

Mirrorball will also be available online, marking the first time the band's music will officially be made available for digital purchase. Def Leppard will also be releasing their new community based website in May, which is being developed to be the ultimate Def Leppard fan experience and go-to destination for all things on the band.

Also set for release this summer is Leppard's first coffee table book titled, Def Leppard - The Definitive Visual History, with exclusive photos by legendary rock photographer Ross Halfin. The book will be released on June 1st.

With more than 65 million albums sold worldwide and two prestigious Diamond Awards (Def Leppard are one of only five rock bands to have two consecutive 10 million plus selling albums in the US - the others are THE BEATLES, LED ZEPPELIN, PINK FLOYD and VAN HALEN) to their credit.