After Stamos' tattoo prank, it's now Nick's move.

The troll war between John Stamos and Nick Jonas all started when Stamos was caught wearing a Jonas Brothers T-shirt. Nick was later pictured in a sweatshirt which had the photo of Stamos in the T-shirt. Stamos then put up a picture with that photo on a pillow case last week. So, Jonas put up a photo of that photo he had made on a giant duvet. 

"I am the fourth Jonas Brother," The Full House star has joked. "I love those guys." 

But, Stamos' next level tattoo prank, might be the top of the troll war. 

"#jobrosforlife," Stamos captioned the picture, which shows tattoo artist, Marisol Preciado, getting ready to ink the portrait of Nick Jonas on the actor's arm.

Followers and fans are split. Some are giving praise, and some are worried that the tattoo is real. 

While Nick hasn't replied yet, Kevin Jonas wrote, "No way!!!!" in the comments. 

Stamos' wife, Caitlin, wrote back, '@nickjonas will have to name his firstborn John Stamos."