Thin Lizzy the UK no. 5 hit single "Out in the Fields". Gary Moore died of a heart attack in Estepona, Spain on 6 February 2011, aged 58. After Moore's departure, Thin Lizzy continued the tour for a few nights as a trio before Lynott brought in Midge Ure to replace him on a temporary basis. Ure had prior plans to join Ultravox, but had co-written a song, "Get Out of Here", with Lynott on "Black Rose: A Rock Legend", and agreed to help Thin Lizzy complete their touring commitments. He also contributed guitar parts for "The Continuing Saga of the Ageing
Thin Lizzy would be leaving Thin Lizzy amicably to rejoin Def Leppard after one final gig on 28 May. He was replaced by Guns N' Roses guitarist Richard Fortus. On 28 August, it was announced that Damon Johnson of Alice Cooper's band would be replacing Fortus for Thin Lizzy's tour of the US with Judas Priest. Fortus returned to tour with Guns N' Roses for the rest of the year, and Johnson has since replaced Fortus permanently. In March 2011, Gorham told Billboard.com that Thin Lizzy may record a new album in the future, saying, "That's the No. 1 question we're getting