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REESE & JAKE
Just five months after she split from Ryan Phillippe, Witherspoon quietly stepped out with Rendition costar Gyllenhaal in March. And while they haven't made public declarations of love, the two have traveled the world together, getting cozy in London, Morocco and in Paris, where they spent Bastille Day with her kids. "He's very supportive," she told Vogue. "I'm very happy in life."
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PENN & BLAKE
Their Gossip Girl characters called it quits last spring, but Badgley and Lively's romance was just heating up. After the show's first season wrapped in May, the couple shared a PDA-filled getaway to Mexico's Mayan Riviera. But they also made time for family: In July, Lively supported her beau's mom at her jewelry launch in New York. Her onscreen mom Kelly Rutherford approves of their romance, too, telling PEOPLE, "I think they're so lovely."
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TAYLOR & JOE
They've reportedly gone their separate ways, but this summer Swift and Jonas had everyone talking. Dating buzz intensified when he was spotted in August at her West Palm Beach, Fla., concert with her dad. Swift returned the favor by shooting a cameo for the Jonas Brothers' 3-D movie in New York. Still, she maintained there was no romance. "He's an amazing guy and anybody would be lucky to be dating him," Swift said through her rep at the time.
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LINDSAY & SAMANTHA
They've been close friends for years, but this spring Lohan and Ronson took their love public. In May, the two kissed for the cameras at a bash aboard Diddy's yacht in Cannes – then continued their world travels as Ronson booked deejay gigs all year. The ladies share matching star tattoos, and even had a dinner date with their mothers. "I'm really happy," Lohan told Marie Claire in October. "[Samantha's] a great person. And she's a great influence on people around her."
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BEYONCé & JAY-Z
Yes, they've been an item since 2002, but this year, Beyoncé and Jay-Z got married – and still kept mum about their romance! The pair picked up a marriage license in Scarsdale, N.Y., before their ultra-secret April 4 nuptials at the rapper's New York penthouse. While neither publicly confirmed their union, in September, Beyoncé finally flashed her wedding ring, then opened up to Essence, telling the magazine in October, "What Jay and I have is real."
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LAUREN & KYLE
Ask Conrad and she'll say she's "single and having fun." But the Hills star seems especially focused on fun with one guy: My Boys actor Howard. Since August, they have frequented Jazz Night at Teddy's inside the Hollywood Roosevelt Hotel, where they snuggle in a corner, holding hands and stealing kisses. In October, they took a bolder step – in daylight! – spending a cozy afternoon on the Malibu beach.
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SELENA & NICK
Disney Channel stars Gomez and Jonas may have accidentally kissed and told the world they're an item! In two separate interviews, they shared similar-sounding first kiss stories. Oops! As speculation about dating continues, Gomez does allow that the two are friends: "I've gotten really close to the entire Jonas family this past year," she told TV Guide in October. "Nick and I are getting to know each other, but we're not confirming anything."
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RIHANNA & CHRIS
"We are very good friends," Rihanna said of Brown after pictures of them smooching surfaced. It wasn't the first time the two were caught canoodling: In February, they escaped to Jamaica for a steamy vacation. And this May, Brown celebrated his 19th birthday with a kiss from his lady in Manhattan. So, why not just come clean about their relationship? "Sometimes you just need your privacy," she said in a radio interview. "But it comes with the territory. There's no privacy when you are out in the public."