ET's Keltie Knight spoke with the 32-year-old singer at Mardi Gras World in New Orleans on Saturday, where she revealed the key to juggling American Idoland her Witness world tour: being single!
"I'm a bit younger in heart! I'm a bit more mature...single!" Perry laughed when asked about her busy schedule. "You know, when you're single, you got a lot of time to yourself and a lot of energy, and I'm just finding a delicate balance."
Shelton, meanwhile, joked to ET last month that he helped Bryan with his Idol negotiations -- so that the country would have the pleasure of seeing the real Luke Bryan.
"I think people are going to realize just how dumb he really is when they see him on national television, in an environment where there's no script," he teased. "But you're also gonna see what a great, great, dude that guy is."
"I love Luke like a brother, I really do, but he's just dumb," Shelton cracked.