<P> In December 2014, the band announced a 13 - date Canadian tour in April and May 2015 . This was followed in February 2015 with the announcement of a 2015 US summer tour with Styx and Tesla from June to October 2015 . The tour was then extended to include dates in Japan and Australia throughout November, and a tour of the UK and Ireland with Whitesnake in December . Def Leppard then returned to North America with Styx and Tesla in early 2016 . </P> <P> The eleventh studio album, titled Def Leppard, was recorded in 2014 and 2015, and released on 30 October 2015 . The band released the lead single from their self - titled album on 15 September 2015, titled "Let's Go", with a music video for the song being released on 30 October . The 14 track album debuted at number 10 in the U.S. and number 11 in the UK . </P> <P> During the break following their 2015 tour, Def Leppard led the Hysteria on the High Seas concert cruise aboard the MSC Divina in January 2016 . Originally supposed to be a cruise just for the concert goers, cabins were later opened up to others due to low sales . The cruise did not go according to schedule for various reasons: The cruise was not able to dock at the private island due to inclement weather, then Joe Elliott became ill with laryngitis on the night of their cruise performance . This led to the band performing without Elliott for the first time in their history . Vivian Campbell and Phil Collen sang lead vocals on two songs of the shortened seven song set in addition to two songs with vocals by Andrew Freeman and two more with Eric Martin and Kip Winger. in addition to this, Campbell and Freeman's Last in Line bandmate Jimmy Bain, former bassist of Dio died of lung cancer aboard the ship the same night, causing Last in Line to cancel their show the following day . Back on land, Elliott struggled through the first concert of the 2016 tour, resulting in Tesla's Jeff Keith joining Elliott on lead . The following day's concert was also postponed "due to illness", with Rick Allen reporting on Twitter "The Doctor basically said that if Joe continues to sing without resting his throat for a month he might do permanent damage ..." By July, the band were performing regularly again and intended to complete 48 dates . When the tour stopped at DTE Energy Music Theatre in Clarkston, Michigan on 15 July, the show was recorded for future release . On 10 February 2017, the band released And There Will be a Next Time...Live from Detroit, a double live album and concert video . </P> <P> In August 2017 the band celebrated the 30th anniversary of Hysteria by releasing a collectors edition box . The singles were also re-released on vinyl . </P>

What is def leppard's new album called