Nick Lachey

Nick and Vanessa Lachey went for a walk along the coast near Coogee Beach in Sydney today. The couple, who are expecting their first child together, traveled to Australia at the beginning of the week and have been touring the area and relaxing. Nick and Vanessa visited the Sydney Zoo on Tuesday and yesterday Vanessa enjoyed a prenatal massage. Their trip, which is Vanessa's first to the country, might also include a night out for the opening of the new Marquee nightclub. Paris Hilton is expected to attend since her boyfriend, Afrojack, is DJing the party. Nick might soon be the one taking the stage though, if rumors that his former band, 98 Degrees, is reuniting for a tour are true.

Love was in the air this year! Lots of celebrities tied the knot in 2011 including Paul McCartney, Kim Kardashian, Kate Moss, Nick Lachey and many more. There were low-key affairs, over-the-top "I do's," surprise beach weddings, and simple overseas ceremonies. We're taking a look back at them all as we round up the year's most gorgeous celebrations!

Also, don't forget to vote on your favorite celebrity wedding of 2011 and check out all of our Best of 2011 coverage across the PopSugar Network!

Getty, Startraks, Flynet

Nick Lachey and Vanessa Minnillo showed some skin yesterday while on a bike ride in Maui. Vanessa Minnillo was in a bikini for the spin around the island while Nick went shirtless to work on his tan. The couple are in Hawaii enjoying an early Winter vacation to celebrate their birthdays on Wednesday. Nick and Vanessa were both born on Nov. 9, and he turned 38 while she rang in 31. Nick got lots of well wishes from fans on Twitter and wrote in response, "Thanks everyone for the birthday wishes today! Vanessa and I are feeling the love from you all. Here's to a great day!" Vanessa, meanwhile, wrote, "Now the Birthday Vaca begins!" They have lots to be thankful for in 2011, especially since the newlyweds tied the knot at Richard Branson's Necker Island on July 15.

Talk about timely! Kelly Ripa and her Live With Regis and Kelly guest host Nick Lachey got into the Halloween spirit with pop culture inspired costumes for the show this morning. They dressed up as Kim Kardashian and Kris Humphries on their wedding day, which ended up being a bit strange since the duo's divorce was confirmed just hours ago.

Kelly wore an elaborate gown with a bejeweled headpiece and a dark wig while Nick had a little help from stilts to get to Kris's 6'9" frame. The elaborate looks were just the beginning for Kelly and Nick, who also dressed up as Kate Middleton and Prince William as well as a pageant contestant and Charlie Sheen. They even had a stand-in for Regis Philbin — Heidi Klum got into character as the talk show host with a suit and manly makeup.

Newlyweds Nick Lachey and Vanessa Minnillo returned from their honeymoon last night. The romantic getaway took place in St. Barts, just days after they tied the knot on Richard Branson's Necker Island. Upon their return, Vanessa tweeted, "Home sweet home! Thank you so much for all the love . . . married life is good." A sneak peek at their wedding was recently released by TLC ahead of the full airing on July 30 in a special called Nick and Vanessa's Dream Wedding. Vanessa reminisced about her Monique Lhuillier gown after the July 15 ceremony. Recalling what led to her picking the classic-looking, two-piece dress, Vanessa said, "I finally decided to ask Nick and said, 'What do you want to see me in when you marry me, and I become Mrs. Lachey?' I thought I would get some generic guys' answer, but he sat up in bed and told me he loved me with my hair down . . . and wanted me in something traditional but with a modern flair."

It's honeymoon time for Nick Lachey and Vanessa Minnillo! A shirtless Nick and bikini-clad Vanessa boarded a private yacht in St. Barts on Thursday. The newlyweds tied the knot over the weekend and Nick Lachey and Vanessa Minnillo's wedding on Necker Island will be televised in a special on TLC at the end of the month. The couple were married in front of 35 guests, and the groom recently shared all the details about the moment he saw his bride saying, "It literally took my breath away. It's a moment you fantasize about, and I was certainly not disappointed." Vanessa Minnillo wore a strapless Monique Lhuillier ensemble, and they exchanged diamond wedding bands during the Friday ceremony. The duo took to Twitter to show their excitement, and it looks like they're enjoying their sun-filled honeymoon. Vanessa lounged on the deck of the boat while Nick went shirtless, and they later took a playful walk in the sand.