Question: What album featuring guest artists Ed Sheeran and Gary Lightbody was promoted during Taylor Swift's third concert tour?

<P0-S0> The x Tour (pronounced "multiply tour") was the second world concert tour by English singer-songwriter and musician, Ed Sheeran, in support of his second album, "×" (pronounced "multiply"). <P0-S1>  The tour began in Osaka, Japan on 6 August 2014, and continued through Europe, the Americas, Oceania and Asia until 12 December 2015, where the tour ended in New Zealand. <P0-S2>  Sheeran planned 179 shows. <P0-S3>  In June 2015, the singer announced a would be filmed during the tour's three sold-out dates, 10–12 July 2015, at 90,000-person capacity Wembley Stadium. <SEP> <P1-S0> American singer Demi Lovato has embarked six concert tours and performed live at various award ceremonies and television shows. <P1-S1>  Her debut promotional tour in 2008, Demi Live! <P1-S2>  Warm Up Tour was based in North America only and supported her debut studio album, "Don't Forget" (2008). <P1-S3>  At the same year, Lovato served as one of the opening acts for Jonas Brothers on their fifth concert tour, Burnin' Up Tour. <P1-S4>  Lovato also served as one of the opening acts for Avril Lavigne on her third concert tour, The Best Damn World Tour on selected dates in North America. <P1-S5>  In 2009, Lovato performed as the opening act on the Jonas Brothers World Tour 2009 with Jonas Brothers during the South American and European legs, before she continued to tour her first headlining tour, during Summer 2009, promoting her debut album "Don't Forget" and her sophomore album "Here We Go Again". <P1-S6>  The tour featured opening acts, David Archuleta, Jordan Pruitt and KSM. <P1-S7>  In 2010, Lovato performed as the opening act on Jonas Brothers' Live in Concert World Tour 2010. <P1-S8>  On November 1, 2010, Lovato left the tour after a dispute arose to the public light involving her apparently punching one of the dancers of the tour. <P1-S9>  After Lovato left, she was interned in a treatment center to seek out help. <SEP> <P2-S0>  Launched in support of Swift's fourth studio album, "Red" (2012), the tour began on March 13, 2013 in Omaha, Nebraska and concluded on June 12, 2014 in Singapore. <P2-S1> The Red Tour was the third concert tour by American singer-songwriter Taylor Swift. <SEP> <P3-S0>  It was released on October 22, 2012, by Big Machine Records, as the follow-up to her third studio album, "Speak Now". <P3-S1>  The album title was inspired by the "semi-toxic relationships" that Swift experienced during the process of conceiving this album, which Swift described the emotions she felt as "red emotions" due to their intense and tumultuous nature. <P3-S2>  "Red" touches on Swift's signature themes of love and heartbreak, however, from a more mature perspective while exploring other themes such as fame and the pressure of being in the limelight. <P3-S3>  The album features collaborations with producers and guest artists such as Gary Lightbody of Snow Patrol and Ed Sheeran and is noted for Swift's experimentation with new musical genres. <P3-S4>  Swift completed The Red Tour in support of the album on June 12, 2014, which became the highest-grossing tour of all time by a country artist, grossing over $150 million. <P3-S5> Red is the fourth studio album by American singer-songwriter Taylor Swift.