The 28-year-old popstar is set to kick off her 'artRave: The ARTPOP Ball tour' on May 4 in Florida, but took time to have her wisdom teeth pulled before going on her world trek, reported Contactmusic.
"Wisdom teeth out. P-p-Percocet p-p-Percocet (pain reliever)," Gaga tweeted.
The singer also posted a photo of herself sitting in a bed hugging a stuffed monkey, alongside the caption, "Chipmunk Cheeks. Wisdom Teeth out before tour. I can't eat. I'm gonna put some meatballs in a blender.