This footage was reportedly taken on Monday in Nebraska, where multiple storms swept through the state, killing at least one person and injuring more than a dozen others.
The "Since U Been Gone" singer is the latest celebrity to endorse making pot lawful in America.
The annual set of 68 tournaments at the Rio Hotel & Casino that rewards millions of dollars to the best card sharks starts Wednesday.
The star has offered up an early apology for any offensive remarks he may make while on his upcoming press tour for "Jurassic World."
Disney's fantasy adventure topped the slow Memorial Day weekend box office with an estimated $41.7 million debut.