That's the hind end of a Mardi Gras float from Friday night. Mardi Gras happens in New Orleans, in case you're just now joining us, which is LSU Tigers country.
So here we have an Alabama Crimson Tide mascot on a float made to literally resemble a crimson tide, preventing a LSU player from crossing the 50-yard line, all being paraded around New Orleans. Just go with it.
But wait! There was plenty more to this float:
That's pretty much everything you need to know about the national title game. Jordan Jefferson couldn't keep his ankles and elbows distinguished, but backup Jarrett Lee couldn't get in the game at all, and neither could T-Bob Hebert to daddy Bobby's public disdain, and Lord Nick Saban towers above all, as unbeatable as ever. Wound-up and straight-laced Nick Saban, conquering hero of Mardi Gras.
Also, those guys on the float are all dressed up as LSU's end zone, I'm pretty sure. Kind of a weird thing to reference, since nobody's ever seen it.