One Love: U.S. Open Couples!

From Chelsea Clinton & Mark Mezvinsky's PDA to Gwen Stefani & Gavin Rossdale's cheer section, see which star pairs are Grand Slam fans!

JESSICA & ED

They're back on! Gossip Girl twosome Ed Westwick and Jessica Szohr snuggle in their seats on Sept.1 as Andy Roddick beat France's Stephane Robert.