A man wears a lobster-shaped hat during the Louisiana Crawfish Festival in Chalmette, Louisiana, the United States, on May 1, 2021. The 45th Louisiana Crawfish Festival is held here from April 29 to May 2. (Photo by Lan Wei/Xinhua)

Cajun-style lobster tails are seen on the Louisiana Crawfish Festival in Chalmette, Louisiana, the United States, on May 1, 2021. The 45th Louisiana Crawfish Festival is held here from April 29 to May 2. (Photo by Lan Wei/Xinhua)

People watch a band performance during the Louisiana Crawfish Festival in Chalmette, Louisiana, the United States, on May 1, 2021. The 45th Louisiana Crawfish Festival is held here from April 29 to May 2. (Photo by Lan Wei/Xinhua)

People enjoy crawfish during the Louisiana Crawfish Festival in Chalmette, Louisiana, the United States, on May 1, 2021. The 45th Louisiana Crawfish Festival is held here from April 29 to May 2. (Photo by Lan Wei/Xinhua)