Beyoncé, Kelly Rowland fangirl at Janet Jackson’s Vegas show

Janet Jackson closed out the first leg of her Las Vegas residency with powerhouse fans in the crowd, including Beyoncé, Kelly Rowland and Tiger Woods.

Woods introduced Jackson before the show and had everyone on their feet applauding, we hear.

Beyoncé and Rowland were dancing to hits “What Have You Done for Me Lately” and “Rhythm Nation.”

Jackson will appear at UK fest Glastonbury and the Montreux Jazz Festival in Switzerland before returning to Vegas in July.