"Survivor" fans, beware ... you've never seen Jeff Probst like this before.
The TV personality strips down for an appearance on "Two and a Half Men," posing completely naked while holding a tray of bacon.
"Taking it all off tomorrow night on two and a half men!" he wrote, sharing the below photo:
Probst must be working out while stranded on all those islands ... who knew all THAT was under his blue, button-up shirts?
"Two and a Half Men" airs Thursdays at 9:30 p.m. EST on CBS.