The 2016 U.S. Open kicked off this week in Queens, New York. 

Though this year's competition will feature Arthur Ashe Stadium's new roof for the first time — preventing rain delays and cancelations — one thing that won't be different are the celebrity spectators. 

Scheduled to last until Sept. 11, the annual tennis tournament is expected to draw more famous names as the finals draw closer. Here are some of the notable faces that have showed up to the games so far.