They've only been together since November. But they've become a tight unit, showing up in matching black boots and jeans, finishing each other's sentences and giggling at in-jokes.
We asked the 3rdEyeGirls to describe each other.
Hannah Ford Welton
Vitals: 22, drummer, Louisville, married to Joshua Welton, a singer/producer/former reality TV star.
"Smiley, fun, powerhouse, focused, energetic," said Donna Grantis.
"A sweetheart, very talented, how can you say 'bad ass' in a nice way?" Ida Nielsen said. "My vocabulary is not good. There's a contrast between being a good-looking, pretty, sweet smiley girl and then she's surprising [makes gesture like an explosion]."
Donna Grantis
Vitals: 30ish, guitarist, from Toronto, married to Trevor Guy, a record-label VP.
"She's sweet, for sure," said Ford Welton. "Quiet, fierce, shocking, explosive."
"Donna is cute and sweet," Nielsen said, "and she has that same contrast in her personality that Hannah has in that she can sit here and talk about chocolate and stuff and just be a little girl and then just play distorted guitar."