McConaughey Parties -- Leaves Shirt On

11/6/2006 1:56 PM PST BY TMZ STAFF
Matthew McConaughey took time off from his highly publicized workouts to celebrate his 37th birthday by rocking out, shirted, with cast and crew of his latest film, " Fool's Gold," shooting in Australia.

The sweaty and notoriously smelly hunk revealed his more modest side by not showing his pectacular chest.

We enjoy every opportunity to view his rippedness, but the bongo boy appears to wear a shirt once a year for his birthday.