Watch: John Cena Brings Back 'The Doctor Of Thuganomics' at WrestleMania 35

John Cena took us straight back to the early 2000s when he brought out the Doctor of Thuganomics at WrestleMania 35.

The Doctor of Thuganomics is back. 

John Cena, sporting a Babe Ruth jersey, oversized chain and Yankees backwards cap, brought back the early 2000s look when he interrupted old rival Elias on Sunday at WrestleMania 35. Elias was not happy about the interruption, but the crowd at MetLife Stadium was thrilled at the impromptu rap.

W O R D L I F E .

The #DrOfThuganomics is BACK! 💯 #WrestleMania @JohnCena pic.twitter.com/A9GKCXakKu

— WWE (@WWE) April 8, 2019

"Kill the beat," Cena said. "The Doctor of Thuganomics is back and Elias just got the worst deal because John Cena is about to turn heel."

Cena even brought back the photoshops, calling Elias a "piece of Shih Tzu."

The crowd is chanting shit-zu pic.twitter.com/JsBjAdE3Kb

— SI Wrestling (@SI_wrestling) April 8, 2019

WORD. LIFE.#WrestleMania @JohnCena pic.twitter.com/wkbWgdaAjI

— WWE (@WWE) April 8, 2019

Following the moment, Cena explained why he brought back the look, saying it was "really special" and "done all in the good heart of entertainment."

EXCLUSIVE: @JohnCena explains why he fired up the "2004 way-back machine" for The Showcase of the Immortals. #WrestleMania pic.twitter.com/ra1I70LXq2

— WWE (@WWE) April 8, 2019

Cena rose to fame playing the rapper in the early 2000s, using the song before switching to "The Time is Now."