Celebrity Labor Day Plans: Rihanna, Kim Kardashian, Justin Bieber and More!

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What are the stars doing this Labor Day weekend? We know!

Ah, in the U.S. this Labor Day weekend marks the last official weekend of "traditional" summer. We're going to be relaxing, but according to Twitter your fave celebs are busy! Here we tracked the Labor Day plans of your favorite superstars.

"Dancing With the Stars" former pro Edyta Sliwinska comemmorates a special day this weekend with her hubby, pro dancer Alec Mazo: "Celebrating our 3 years of being married. Great 3 years of my life."

READ: Edyta Sliwinska Tweets Over Quitting "Dancing With the Stars"

Jimmy Fallon's just focusing on building his Twitter profile: "Happy Labor Day Weekend! ... I'm going to start following a lot more people."

Friday "Dancing With the Stars" co-host Brooke Burke was kicking off a weekend of relaxation with her family: "I slept sooo great ... I'm about to wrote a blog and enjoy my coffee in peace." The Burke tweeted, "Finally a day off, taking my kids to breakfast."

Jon Gosselin's having a family weekend too, as he tweeted Friday that he was home with the kids and his girlfriend Ellen. Gosselin also tweeted to his 80,000 followers to kick off the Labor Day holiday: "Be safe and have a great weekend."

Kim Kardashian tweeted, "What's everyone doing this Labor Day weekend? I'm going to a wedding and have to work this weekend! Hope u all have a safe holiday! Xoxo"

READ: Kim Kardashian's Sexy Dress Shows Off Every Curve (PHOTOS)

Rihanna's living it up tropical-style: "HAWAII...Hawaii...hawaii......" Yeah, we're jeally!

Rachel Zoe rang in the weekend with a special celly for her 39th: "Surprise bday bash last night given by Rodgy and my amazing parents! The most special evening with friends and family..."

Justin Bieber worked through the weekend on his My World Tour, hitting up the East Coast, and asked fans to support him at the VMAs: "We can do it!! BEST NEW ARTIST!! VOTE!! Thank yah!! LET's DO IT!! SPREAD THE WORD!!!" [sic]

READ: Will there be a Justin Bieber, Snoop Dogg collaboration?

Sean Kingston followed Bieber about on the My World tour, tweeting, "Now Its Off To Vermont For Us!"

And our beloved Katy Perry celebrated American Labor Day not in America, but in London -- and on a health kick!: "TOP of de mornin' to you. Had almost 8 hours [of sleep], a work out & some breaky so I'm in a good mood! :)" [sic]

Read the latest on Katy Perry becoming British

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Flip through our slideshow of Twitter celebs who made big news this week...and hit the blue links for more Twitter and celeb-related news!