After postponing an entire series of dates last year because of singer Bono's emergency back surgery, U2 returned stateside to launch the final leg of their record-breaking 360 Tour at Invesco Field in Denver on Saturday.

Following a video message from Burmese revolutionary Aung San Suu Kyi, who thanked U2 for their efforts to free the people of Burma, the band kicked off the show with 'Even Better Than the Real Thing.'

Bono acknowledged the rumors of the Rapture taking that place that night by dedicating a song to the man who started the movement. "This is for the Reverend Harold Camping," before the group played 'Until the End of the World,' which was included on our list of the Top 10 Doomsday Songs. During the song, the singer joked that guitarist the Edge would be the only one of them taken in Rapture.

The U2 frontman also told the crowd that he had healed completely from his back injury. "Things could have been very different. I was in a lot of trouble," Bono said before the band launched into 'All I Want Is You.' "I thank God and the Germans. Through the wonders of science, I'm not just fixed – I'm better."

The 24-song set also included such classic songs as 'I Will Follow,' 'Sunday Bloody Sunday,' 'Where the Streets Have No Name' and 'With or Without You.' Check out the full set list here.

U2's final North American leg of its 360 Tour continues through a July 30 gig in New Brunswick, Canada. The trek has taken in more than $700 million so far, making it the highest-grossing tour of all time. Click here to see the remaining itinerary.

Watch U2 Perform 'Until the End of the World' at Denver's Invesco Field