In 2007, Gorham said that Lynott still received the biggest cheer of the night at concerts, and that the current Thin Lizzy was not active simply for money. "We'd stop if we thought we were just going through the motions... I think that has a lot to do with the songs – if they were inferior, then maybe we would have got tired of it all. But they're not and we haven't," he said. In January 2011, Gorham maintained that Lynott would have approved of the continuation of the band: "He worked long hours and travelled thousands of miles to get it to a certain level. There's no way he would have said 'No-one should play those songs again.'"
Thin Lizzy, along with support band The Answer, were to support AC/DC at stadium shows in England, Ireland and Scotland at the end of June 2009, but these appearances were cancelled after drummer Aldridge broke his collarbone in an accident. On 30 June, the band's website confirmed that Sykes had left Thin Lizzy and all shows for the rest of 2009 were cancelled or postponed. Gorham stated that he would announce Thin Lizzy's future plans shortly. In a statement, he said, "It's been a very tough time of late for myself and the band, firstly with drummer Tommy Aldridge's injury and now the subsequent decision for John and the rest of the group to go their separate ways. I can only apologise to everyone who has supported us over the years, but we will be back up to full speed soon."[
2010–17: Ricky Warwick era and Black Star Riders
In September 2009, Gorham began to assemble a new version of Thin Lizzy, and in May 2010 a new line-up was announced. Joining Gorham was original drummer Brian Downey, long-standing keyboardist Darren Wharton, Def Leppard guitarist Vivian Campbell, and singer Ricky Warwickfrom The Almighty, while Marco Mendoza returned to fill the bass guitar role. Ex-Lizzy guitarist Brian Robertson was asked if he wanted to participate but had previous commitments to his own solo career. In addition to a full UK and European tour beginning in January 2011, the band initially announced a concert for 4 January at the O2 Arena in Dublin, which was in conflict with the 2011 "Vibe for Philo". The tour itself started on 6 January at the Music Hall Aberdeen in the UK, with the band finishing the tour in The Olympia, Dublin on 17 February 2011, having cancelled the O2 show.