What is a chart caller?

A chart caller is a person responsible for calling out chart positions and updates on a music chart show or countdown program. They typically announce the current position of a song on the chart, any movement up or down the chart, and any new entries or exits. Chart callers often have a good knowledge of current music trends and popular songs, as well as the ability to convey information in an engaging and concise manner for listeners or viewers. They may also interact with hosts or guests on the show to provide additional insight or analysis on the chart rankings. Overall, a chart caller plays an important role in keeping audiences informed and entertained while listening to or watching a music chart program.