FUNKY COSTNER NEEDS TO CLEAN UP HIS ACT!
SCRUFFY Kevin Costner may be cleaning up with a hefty pay hike for season five of “Yellowstone,” but behind the scenes sources snitch he’s happy being a rank rancher — and his stinky ways are making his much younger wife turn up her nose! The twice-married “Waterworld” hunk, 67, got hitched to Christine Baumgartner, 48, more than 17 years ago. But tipsters say the glamorous former model is finally at the end of her rope when it comes to her sloppy hubby’s hygiene! “He’ll put on a tux for an event, but he’s more comfortable in the same old jeans and flannel shirt he’s worn around the house for years,” spills an insider. While Kevin’s rep denies our story, the source shares, “Between acting gigs, he doesn’t even shave most days — let…