Shawn (Mario & Luigi: Dream Team)
From the Super Mario Wiki
“CUSH SAYS CUSH, SHAWN SAYS SHAWN, THEN SAY CUSH AND SHAWN!”
During the events of the game, Mario and Luigi travel to Mount Pajamaja to track down Bowser and Antasma. While scaling the mountain, he sees a barrier that not even the Massifs can break. Dreambert suggests to find two Mega Pi'illos who are trapped in Nightmare Chunks. Shawn happens to be one of them, along with his relative Cush. Once both are free, they sing a song and destroy the barrier with their sheer strength. Mario and co. move on towards the summit, thanking Shawn and Cush for helping them.