The venue was packed and fans cheered when Bono kicked off the concert saying, "Vive la France."
There was also a song about refugees, with Bono saying, "What do you want? A Europe closed on its heart or open to compassion and mercy?"
Earlier in the day, there was a rumor that the American rock band, Eagles of Death Metal, who were playing at the Bataclan in Paris on Nov. 13, was going to join U2 on stage. U2 quickly debunked the rumors on its site.
"We're back in Paris and it's great to be here. Some people have been saying that Eagles of Death Metal will appear on stage with U2 tonight. This is not the case. We have another surprise guest planned for tonight's show," the group said.
Members of Eagles of Death Metal watched the U2 show from the front row. According to other rumors, the group could be joining U2 for one song at Monday night's concert.
Names of Paris attack victims were projected onto a video screen in the arena and at the end of the concert, Bono sang a few words from Jacques Brel's "Ne me quitte pas.”