1 of 16
TOM & KATIE
They've been dating for only a few weeks, but Tom Cruise, 42, is getting serious about Katie Holmes, 26. When asked by Oprah Winfrey if he'd propose to the actress, Cruise said, "I gotta discuss it with her."
2 of 16
BRAD & ANGELINA
Though his divorce from Jennifer Aniston, 36, isn't final, Brad Pitt, 41, has clearly made a connection with Angelina Jolie, 30. And he told GQ, "I'll make (another marriage) happen."
3 of 16
MATTHEW & PENELOPE
Together more than a year, Matthew McConaughey, 35, and Penelope Cruz, 30, are still Sahara hot. Yet he said recently, "You don't see a ring on my finger, do you?"
4 of 16
ASHTON & DEMI
A source tells PEOPLE that Ashton Kutcher, 27, and Demi Moore, 42, have commissioned wedding rings. But as for rumors that Moore is expecting a baby, her rep says, "She cannot at this time say she is pregnant."
5 of 16
PARIS & PARIS
After dating since only December, the twentysomething Paris Latsis proposed to Paris Hilton, 24. But will Hilton, who saw sister Nicky's quickie marriage to Todd Meister annulled after just two months, decide she's moving too fast?
6 of 16
BEN & JEN
Ben Affleck, 32, never made it to the altar with former fiancée Jennifer Lopez. This time, he's staying mum on his engagement to Jennifer Garner, 33, who sources say is three months pregnant.
7 of 16
JESSE & SANDRA
Though Sandra Bullock, 40, and her beau of more than a year, twice-divorced Monster Garage host Jesse James, 36, might seem like an odd couple, the actress tells PEOPLE she's open to the idea of marriage – and kids.
8 of 16
LEO & GISELE
Leonardo DiCaprio, 30, and Gisele Bündchen, 24, have been dating on-and-off for five years. Still, asked about getting hitched last year, DiCaprio said, "I'm just too happy doing what I'm doing."
9 of 16
JERRY & REBECCA
Rebecca Romijn, 32, just finalized her divorce from John Stamos in March, but her boyfriend of 10 months, Jerry O'Connell, 31, tells PEOPLE, "I'm definitely getting ready to settle down. ... Next up is kids."
10 of 16
JAY-Z & BEYONCé
Though they've been together for nearly three years, Jay-Z, 35, has never commented on his relationship with Beyoncé, 23. One thing he will admit? He wants children. "Everybody does!" he says.
11 of 16
ADAM & RACHEL
The O.C. costars Adam Brody, 25, and Rachel Bilson, 23, have been tight since late 2003. They won't talk publicly about their romance, but Brody has high hopes for Seth and Summer: "Ideally, (in) the last episode everyone gets married."
12 of 16
FABRIZIO & DREW
Divorced twice by the time she met Strokes drummer Fabrizio Moretti, 25, in 2002, Drew Barrymore, 30, won't say whether she plans to make legal what she calls "the most positive relationship I've ever been in."
13 of 16
LANCE & SHERYL
Despite recent breakup rumors, Lance Armstrong, 33, and Sheryl Crow, 43, insist they're still going strong. And Crow has said that meeting Armstrong in October 2003 "changed my life – and I'm happier than I've ever been."
14 of 16
JUSTIN & CAMERON
Cameron Diaz, 32, wears a band on her ring finger – but her rep says she's not engaged to her boyfriend of two years, Justin Timberlake, 24.
15 of 16
JUDE & SIENNA
Although Jude Law, 32, gave Sienna Miller, 23, a diamond ring in December, they still haven't set a date – or moved in together. Yet the divorced actor says he's "someone who always looked for commitment."
16 of 16
BRANDON & MISCHA
Mischa Barton, 19, says "everything is great" with Brandon Davis, her boyfriend of more than a year. But will they make it legal? Her young age could keep them from walking down the aisle anytime soon.