John was a recipient of a Kennedy Centre Honour a year ago (DEC04) and thought it would have been more hypocritical to stay away from the ceremony.
The 58-year-old, who attended the event with his partner David Furnish, says, "It doesn't matter who's in power, the president has nothing to do with choosing it.
"A lot of people said I shouldn't go. But America's given me everything. it was incredible. We did talk to George Bush for 10 minutes about AIDS.
"We were polite. Ultimately, I'm a great one for building bridges rather than higher walls. I'd rather go in and hold out a hand."