Justin Bieber is gonna have to do a lot more than say he's sorry to get out of this one!
Yikes! This could get ugly.
Take a listen to both songs (below) to hear the very recognizable riff!
We can't say we're surprised that rebel Animal Ke$ha decided to get the words "SUCK IT!" permanently inked inside her mouth (above)!!
The We R Who We R songstress proved even more-so that she doesn't give a flying EFF about what anyone thinks!
And all she had to do was stop by El Lay's Alchemy Tattoo recently for the new tat!
Oh, Ke$ha! Ever the bad*ss!