In 2006, Adams co-wrote and performed the theme song "Never Let Go" which was featured in the closing credits of the film "The Guardian". In April 2006, he was inducted into the Canadian Music Hall of Fame. Also in 2006, Adams co-wrote the Grammy Award-winning gospel song "Never Gonna Break My Faith" for Aretha Franklin. It was featured in the film "Bobby" as a duet by Aretha Franklin and Mary J. Blige with the Boys Choir of Harlem and earned him a Golden Globe Nomination in 2007. On July 31 of the same year, together with Billy Joel, he performed in a free concert with an estimated crowd of over 500,000 people in Rome at Via dei Fori Imperiali, with the Colosseum as a background. To open the concert, Adams with "So Far So Good", then after about an hour it was Joel's turn to take the stage. At the end the two artists gave the audience three encores, performing together for the first time: "You May Be Right", "Cuts Like a Knife" and "Piano Man".