John Stamos, Glen Powell bare it all in stripped-down birthday tribute: ‘Have mercy’

John Stamos’ stripped-down birthday tribute to Glen Powell has fans saying, “Have mercy.”

The “Scream Queens” alums showed some skin in a slew of playful snaps posted via Instagram Tuesday in honor of Powell’s 37th year.

“Happy Birthday @glenpowell, the man who’s seen me naked more times than I’d like to admit,” the “Fuller House” alum, 62, captioned the social media upload.

“Love you buddy!” he continued. “Steam room date soon? xo JS.”

In the carousel’s first photo, Stamos and Powell walked on the street in only sandals, respectively covering themselves with a skateboard and shopping bags.

They were joined by Taylor Lautner in the subsequent shot as the trio stood smiling in showers.

The slideshow concluded with pictures of Stamos and Powell in a steam room, covering up with towels in the first snap and black shorts in the second.

“The best,” Lautner, 33, commented on the post.

Fans raved over the images, with one writing that Stamos’ upload was “more like a happy birthday to us” — and many quoting his “Fuller House” character, Jesse Katsopolis, with, “Have mercy.”

The “Grandfathered” alum has a history of celebrating his own birthday sans clothes.

When Stamos turned 54 in 2017, he shared a cheeky photo of himself taking an outdoor shower among palm fronds.

“54 and clean,” he wrote at the time.

Six years later, he turned 60 with another steamy shower snap taken by his wife, Caitlin McHugh.

“The other side of 60,” Stamos captioned the photo of himself covering up with one hand.

He and McHugh, 39, have been married since February 2018 and share a 7-year-old son named Billy.