Flo Rida fares best in the company of his pals. With T-Pain in tow, “Low” has an unstoppably catchy hook, while Lil’ Wayne lends his irresistibly eccentric persona to the grandiose “American Superstar.” Pure, unadulterated hedonism is the name of the game here. Mail On Sunday will stand as a time capsule of club music in March, 2008.