The Beat 9/5: Madonna Tops Hot Tours, Nicki Minaj Voting for Romney?

Madonna performs live at the opening U.S. date of her MDNA tour in Philadelphia on August 28, 2012.

Welcome to the Wednesday, Sept. 5 edition of "The Beat," Billboard.com's daily music news show, featuring host Jonathan Brooks running down the latest music news -- who's making headlines and who's topping the charts.

In today's episode, J.B. dishes on the latest Hot Tours ranking (which Madonna topped), Nicki Minaj's pro-Mitt Romney rap, the news that K-pop sensation Psy was signed by Bieber's manager Scooter Braun, and Rita Ora's U.K. chart success. He also remembers Starship guitarist Mark Abrahamian, who died of a heart attack Sunday.

Be sure to come back to Billboard.com each weekday afternoon to watch a fresh episode of "The Beat."