Star Tracks: Monday, February 1, 2010

Meanwhile, Timberlake's former 'N Sync bandmates Lance Bass and Joey Fatone kick up their heels during a beach retreat at the Westin Dawn Beach Resort amp Spa in St. Maarten on Saturday.

A day before attending the Grammy Awards, Miley Cyrus heads to a recording studio in Burbank, Calif., with her new puppy Mate and her little sis Noah on Saturday.

Brad Pitt suits up to introduce his Inglourious Basterds director Quentin Tarantino at the Directors Guild of America Awards Saturday at L.A.'s Hyatt Regency Century Plaza. Despite breakup rumors, the movie star attended the ceremony with Angelina Jolie, and the couple looked to be "having a fun time," says an onlooker.

Evangeline Lilly greets fans with open arms at the premiere of the final season of Lost – which airs Tuesday on ABC – at Waikiki Beach in Hawaii.

Justin Timberlake finds his focus Saturday on the downtown Los Angeles set of his latest film, The Social Network. The night before, the singer stepped out with girlfriend Jessica Biel for a pre-Grammy party on the roof of L'Ermitage Beverly Hills.

Victoria Beckham has her hands full with her two youngest sons Romeo, 7, and Cruz, 4, while out in Malibu on Sunday.

Matt Damon leans in for a kiss with wife Luciana on the red carpet during the U.K. premiere of Invictus, his drama about a South African rugby player, at the Odeon in London's Leicester Square on Sunday.

Celine Dion, Smokey Robinson, Jennifer Hudson, Usher and Carrie Underwood take a break from rehearsing their 3-D tribute to Michael Jackson, who will be honored during Sunday's Grammy Awards, at the Staples Center in Los Angeles on Saturday.

What an elegant couple! Keith Urban and Nicole Kidman are dressed to the nines at the 2010 MusiCares Person Of The Year Tribute To Neil Young at the Los Angeles Convention Center on Friday.

Rihanna and Justin Bieber hug it out backstage at L.A.'s Staples Center during rehearsals Friday for the Grammy Awards. The up-and-coming pop phenom is scheduled to present an award at Sunday's telecast.

Get all the latest Grammy news, right here!

Style star Drew Barrymore puts her own spin on casual chic in a hooded poncho while grocery shopping with boyfriend Justin Long at The Oaks Gourmet Market in Los Angeles on Friday.

Madonna makes sure to stay bundled up while heading for a flight out of London's Heathrow Airport on Friday.

Robert Downey Jr. gets into character as Iron Man's Tony Stark – now the recipient of a medal of honor! – alongside Garry Shandling and Don Cheadle while shooting scenes for the film's sequel in Pasadena, Calif., on Thursday.

Goodbye Jersey Shore, hello Long Island! New York native Jenni "J-Woww" Farley makes a star-studded return home, playing hostess at GLO nightclub in Westbury Thursday night.

This interview is going like clockwork! Josh Duhamel – looking like the preppie version of Flavor Flav – is game for a good time during a visit to The Ellen DeGeneres Show in Los Angeles on Friday, where he was presented with an oversized timepiece in honor of his one-year wedding anniversary to Fergie.

Jennifer Love Hewitt stays close to her main man, boyfriend Jamie Kennedy, at Tao Nightclub in Las Vegas. Kennedy, who already has special plans for the couple on Valentine's Day, was on hand to host the 4th annual Tao-A-Go-Go dance contest Thursday night.