Ke$ha gives The Flaming Lips' Wayne Coyne a toe tattoo, we think?

We imagine getting locked up in a recording studio for super-duper long hours will make you get a little cray, but we're not sure how insane we'd have to be to get a smiley face tattoo on our toe like Ke$ha recently gave to The Flaming Lips' Wayne Coyne. Okay, we're pretty sure it's just a little pen creativity (fingers crossed), but Ke$ha's does have a bit of unique body art on her resume (See: her many hair styles). AND these are rock stars -- so, we wouldn't put anything past them.

The famous pair have been spending major QT together while working on "2012," a song collabo on The Flaming Lips' forthcoming album, Flaming Lips and Heady Fwends. Wayne has formed quite a bond with the "Blow" singer over the last couple of months, and the two have shared moments via Twitter -- like this recently posted toe art along with the caption. "Happiest index toe ever in the world!!!"

We're not gonna lie: playing with someone's feet is kinda gross, but it's a FLAMING foot (get it?)! And hey, we aren't admitting to some sort of foot fetish, but there's a VERY short list of famous feet we'd draw on. (Beyoncé, call us.)

Photo credit: @keshasuxx