罗杰·沃特斯
1984 – 至今：独唱生涯 > 2005 – 2015：现场八方重聚、《》和进一步的巡演

In July 2005, Waters reunited with Mason, Wright, and Gilmour for their final performance together at the 2005 Live 8 concert in London's Hyde Park, Pink Floyd's only appearance with Waters since their final performance of The Wall at Earls Court London 24 years earlier. They played a 23-minute set consisting of "Speak to Me/Breathe"/"Breathe (Reprise)", "Money", "Wish You Were Here", and "Comfortably Numb". Waters told the Associated Press that while the experience of playing with Pink Floyd again was positive, the chances of a bona fide reunion would be "slight" considering his and Gilmour's continuing musical and ideological differences. Though Waters had differing ideas about which songs they should play, he "agreed to roll over for one night only". In November 2005, Pink Floyd were inducted into the UK Music Hall of Fame by Pete Townshend of the Who.
In September 2005, Waters released  (pronounced [sa iˈʁa], French for "it will be fine"; Waters added the subtitle, "There is Hope"), an opera in three acts translated from the late Étienne Roda-Gil's French libretto based on the historical subject of the French Revolution.  was released as a double CD album, featuring baritone Bryn Terfel, soprano Ying Huang and tenor Paul Groves. Set during the early French Revolution, the original libretto was co-written in French by Roda-Gil and his wife Nadine Delahaye. Waters had begun rewriting the libretto in English in 1989, and said about the composition: "I've always been a big fan of Beethoven's choral music, Berlioz and Borodin ... This is unashamedly romantic and resides in that early 19th-century tradition, because that's where my tastes lie in classical and choral music." Waters appeared on television to discuss the opera, but the interviews often focused instead on his relationship with Pink Floyd, something Waters would "take in stride", a sign Pink Floyd biographer Mark Blake believes is "a testament to his mellower old age or twenty years of dedicated psychotherapy".  reached number 5 on the Billboard Classical Music Chart in the United States.
In June 2006, Waters commenced The Dark Side of the Moon Live tour, a two-year, world-spanning effort that began in Europe in June and North America in September. The first half of the show featured both Pink Floyd songs and Waters' solo material, while the second half included a complete live performance of the 1973 Pink Floyd album The Dark Side of the Moon, the first time in over three decades that Waters had performed the album. The shows ended with an encore from the third side of The Wall. He used elaborate staging by concert lighting designer Marc Brickman complete with laser lights, fog machines, pyrotechnics, psychedelic projections, and inflatable floating puppets (Spaceman and Pig) controlled by a "handler" dressed as a butcher, and a full 360-degree quadraphonic sound system was used. Nick Mason joined Waters for The Dark Side of the Moon set and the encores on select 2006 tour dates. Waters continued touring in January 2007 in Australia and New Zealand, then Asia, Europe, South America, and back to North America in June.
In March 2007, the Waters song, "Hello (I Love You)" was featured in the science fiction film The Last Mimzy. The song plays over the film's end credits. He released it as a single, on CD and via download, and described it as, "a song that captures the themes of the movie, the clash between humanity's best and worst instincts, and how a child's innocence can win the day". He performed at California's Coachella Festival in April 2008 and was to be among the headlining artists performing at Live Earth 2008 in Mumbai, India in December 2008, but that concert was cancelled in light of the 26 November terrorist attacks in Mumbai.
In April 2008, Waters confirmed the possibility of an upcoming solo album which "might be called" Heartland, and has said he has numerous songs written (some already recorded) that he intends to release when they are a complete album. In June 2010, Waters released a cover of "We Shall Overcome", a protest song rewritten and arranged by Guy Carawan and Pete Seeger. He performed with David Gilmour at the Hoping Foundation Benefit Evening in July 2010. The four-song set included: "To Know Him Is to Love Him", which was played in early Pink Floyd sound checks, followed by "Wish You Were Here", "Comfortably Numb", and "Another Brick in the Wall (Part Two)".
In September 2010, Waters commenced the Wall Live tour, an updated version of the original Pink Floyd shows, featuring a complete performance of The Wall. Waters told the Associated Press that The Wall Tour will likely be his last, stating: "I'm not as young as I used to be. I'm not like B.B. King, or Muddy Waters. I'm not a great vocalist or a great instrumentalist or whatever, but I still have the fire in my belly, and I have something to say. I have a swan song in me and I think this will probably be it." At The O2 Arena in London on 12 May 2011, Gilmour and Mason once again appeared with Waters and Gilmour performing "Comfortably Numb", and Gilmour and Mason joining Waters for "Outside the Wall". For the first half of 2012, Waters' tour topped worldwide concert ticket sales having sold more than 1.4 million tickets globally. As of 2013, The Wall Live is the highest-grossing tour of all time by a solo artist. Waters performed at the Concert for Sandy Relief at Madison Square Garden on 12 December 2012. On 24 July 2015, Waters headlined the Newport Folk Festival in Newport, Rhode Island. Waters was accompanied by the band My Morning Jacket and two singers from the group Lucius.