It's Fat Tuesday -- and while it marks the end of Mardi Gras ... the reality is, the party out there has been going strong for several days now ... just take a look yourself.
Lots of festivities have been unfolding in New Orleans these past several days -- including elaborate parades that have been trotted up and down local streets there ... with some awesome floats on display.
There've been a handful of stars on the scene as well to celebrate Mardi Gras -- Neil Patrick Harris was spotted in NOLA on Monday .