The year 2005 saw Adams join with backing band the Cardinals to produce two albums, Cold Roses and Jacksonville City Nights. Cold Roses, a double album, included backing vocals from Rachael Yamagata on three songs; "Let It Ride", "Cold Roses" and "Friends". His second album of the year, Jacksonville City Nights, featured a duet with Norah Jones on "Dear John". As well as releasing two albums with The Cardinals, Adams released the solo album 29 late in the year. thumb|left|Adams live with The Cardinals in November 2008 Adams befriended Phil Lesh of the Grateful Dead, after first meeting him at the Jammys awards in New York in 2005. The two performed Jerry Garcia and Robert Hunter's Grateful Dead classic, "Wharf Rat". Adams performed at subsequent outings of Phil Lesh and Friends, including a two-night stand at Red Rocks Amphitheatre outside of Denver, Colorado and on New Year's Eve 2005 at the Bill Graham Event Center in San Francisco. Throughout 2006, Lesh's live performances included compositions by Adams, including several from Cold Roses ("Cold Roses", "Let It Ride", and "Magnolia Mountain").
The year 2005 saw Adams join with backing band the Cardinals to produce two albums, Cold Roses and Jacksonville City Nights. Cold Roses, a double album, included backing vocals from Rachael Yamagata on three songs; "Let It Ride", "Cold Roses" and "Friends". His second album of the year, Jacksonville City Nights, featured a duet with Norah Jones on "Dear John". As well as releasing two albums with The Cardinals, Adams released the solo album 29 late in the year. thumb|left|Adams live with The Cardinals in November 2008 Adams befriended Phil Lesh of the Grateful Dead, after first meeting him at the Jammys awards in New York in 2005. The two performed Jerry Garcia and Robert Hunter's Grateful Dead classic, "Wharf Rat". Adams performed at subsequent outings of Phil Lesh and Friends, including a two-night stand at Red Rocks Amphitheatre outside of Denver, Colorado and on New Year's Eve 2005 at the Bill Graham Event Center in San Francisco. Throughout 2006, Lesh's live performances included compositions by Adams, including several from Cold Roses ("Cold Roses", "Let It Ride", and "Magnolia Mountain").