With numerous reports of Donald Trump's odor and Kelly Clarkson's lack of hygienic habits... proof that money doesn't buy cleanliness.
Money Doesn't Buy Cleanliness
Explanation
Explain Bear
Listen up, buttercup. The joke is that even though Donald Trump and Kelly Clarkson have lots of money, people say they aren't very clean. So, it's funny because you'd think being rich would mean you can afford to be clean, but apparently not! And let's be real, you probably think showering is optional, don't you?