The pop star posted a pic of herself brushing out her long, blonde wig as she was getting ready for the concert. "On my way to
Shortly after the concert, video surfaced of Mother Monster dancing in the audience and looking like she was having an absolute blast.
It sounds like the two pop divas got along great, too. Gaga posted a pic of the two of them together backstage with the caption "Me and Brit Brit <3
On her Little Monsters back plane site, Gaga gushed, "She looked so gorgeous, the show was so much fun, and her dad gave us THE BEST BBQ. It was a #MonsterParty!"
For video of Gaga rocking out during Britney's concert, check out the video below.
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Gallery | Hitting a High Note