If every day is Mardi Gras at Fat Fish Blue, imagine what the Cajun-themed blues bar’s actual Mardi Gras celebration will be like. This year, the famous all-day blowout kicks off at 11:30 a.m. — that’s a.m. — for a last-man-standing, party-till-you-drop, loud-and-spicy bash full of beads, booze, and boogie tunes. Cats on Holiday get to wailin’ at 1:30 p.m., with a set of swamp pop and zydeco. Sax soul man Tony Koussa Jr. does his thing at 5, and the Swamp Boogie Band gets feet stomping at 8:30. Admission includes an all-you-can-eat buffet of hot vittles, including gumbo, black-bean dip, catfish, jambalaya, and more. Start taking your Prilosec now — it’s worth it.

This article appears in Feb 22-28, 2006.