After Bowie married Iman in a private ceremony in 1992, he said they knew that their "real marriage, sanctified by God, had to happen in a church in Florence". Earlier that year, he knelt on stage at The Freddie Mercury Tribute Concert and recited the Lord's Prayer before a television audience. In 1993, Bowie said he had an "undying" belief in the "unquestionable" existence of God. In a separate 1993 interview, while describing the genesis of the music for his album "Black Tie White Noise", he said " … it was important for me to find something that also had no sort of representation of institutionalized and organized religion, of which I'm not a believer, I must make that clear." Interviewed in 2005, Bowie said whether God exists "is not a question that can be answered... I'm not quite an atheist and it worries me. There's that little bit that holds on: 'Well, I'm "almost" an atheist. Give me a couple of months... I've nearly got it right. He had a tattoo of the Serenity Prayer in Japanese on his left calf.