The Wimbledon tennis Championships in London are underway and the stars have turned up in droves to support their favorite players. Whether peppered throughout the stadium or sitting in the Royal Box (the best seats in the house!), we've seen everyone from royals to movie, television and music stars.

We love events like this because it brings together people from all sides of the spectrum -- and sometimes, they're friends! How great to see Downton Abbey's Michelle Dockery and Kate Middleton's siblings Pippa and James just chatting away. Kim Sears, girlfriend of British tennis champ Andy Murray has been in the crowd for each of his matches (making us love her style even more) and Liam and Niall from One Direction made an appearance as well.

Click through the gallery above to see our favorite celebrity sightings from Wimbledon so far.