The rapper Lil Jon burst onto the floor of the Democratic convention on Tuesday night, singing a few bars of his iconic song "Turn Down for What" as delegates roared in excitement.

His surprise appearance on the convention floor was part of an effort by Democrats to turn the staid tradition of the roll-call vote that nominated Kamala Harris and Tim Walz into something of a party. Hosted by DJ Cassidy, delegates were instructed to "pass the mic around the nation" as each state cast a symbolic vote for Harris accompanied by a meaningful tune.