After years of reduced prominence, Russell's career was rejuvenated when Elton John sought him for a new project. In November 2009, Russell worked with John and Bernie Taupin on "The Union", a double album record credited equally to Russell and John. Recorded in February 2010 and produced by T-Bone Burnett, the CD was released on October 19, 2010. "The Union" was Russell's sixth gold album. The recordings were interrupted in January 2010 when Russell was hospitalized and underwent surgery for a brain fluid leak, as well as treatment for heart failure and pneumonia. On April 2, 2011, Russell and John performed together as the musical guests on "Saturday Night Live". "Rolling Stone" placed the album in third place on its list of the 30 Best Albums of 2010. A couple of months later, Russell announced plans for a solo LP, although no specifics were given, and in October 2010 Russell and John embarked on The Union Tour. John and Russell also appeared on the Late Show with David Letterman.