According to a Dec. 29 tweet from Marina Shafir, "The Supernova from Moldova" poked fun at hard-hitting knockout artist Miesha Tate (13-5) for walking out to Katy Perry's "Roar" during the co-main of UFC 168.
"Roar," a tune from Perry's fourth studio album, generally received positive reviews from music critics, but its certainly not the prototypical MMA walkout song.
Perry is a power pop artist who appeals to the teenage girl demographic, not the 18-34 male demo that tends to watch mixed martial arts.
Tate's walkout song was certainly an interesting choice, but at least the lyrics make sense as far as fighting goes.
"I got the eye of the tiger, the fire. Dancing through the fire, 'Cause I am a champion, and you're gonna hear me roar," Perry says in the song.
Rousey's walkout song, on the other hand, was far more fitting of MMA.
The star judoka walked out to Joan Jett's "Bad Reputation," a punk rock tune that also fits Rousey's intense personality.
It should come as no surprise that Shafir would take a verbal jab at Tate, as she's Rousey's longtime training partner and best friend.
She also famously flipped the bird at Tate during a recent episode of TUF 18, where she served as Rousey's assistant coach.
Shafir, 25, is an elite fighter in her own right, having gone undefeated in four appearances inside the cage.
She has won all of her fights via submission and she could easily become a household name as early as next year. Just don't expect her to walkout to any Katy Perry songs.