Over the weekend stars like Justin Bieber, The Wanted and Nicki Minaj performed at the Wango Tango concert in California! Here are some pix of the red carpet arrivals of some of our fave ladies like Ariana Grande, Kylie and Kendall Jenner and Carly Rae Jepsen!

Check out the gallery for more pix and tell us who you think was best dressed!

The cuteness is almost too much to handle! Tons of our favorite stars celebrated the holidays and rung in the new year with some new additions to their families—puppies!

Check out the photos tweeted by these proud new puppy parents!

The Kardashian family celebrated Christmas in style this year at their annual Christmas Eve Party! The whole brood (minus Khloe and Lamar) was present and looking festive on December 24 at the party, which they hosted at their home in California.

More pix of Kendall and Kylie Jenner as well as all the Kardashians in the gallery!

After being spotted out and about  together at The Grove in L.A. and then again at Popstar!‘s very own “12 in ’12″ party at Buca di Beppo, rumors began to swirl that Kylie Jenner and Cody Simpson are dating! We know it’s best not to listen to rumors, so we went straight to the source to get the whole story—only... 

We have SO MANY amazing pictures, videos and stories to share from our amazing party celebrating the Top 12 Break-through stars of 2012 that we hosted last night in Los Angeles! The party was at Buca di Beppo at Universal City Walk, with a pre-party presentation on the main stage hosted by Radio Disney’s Jake Whetter!

Last night at the Twilight Saga: Breaking Dawn Part 1 premiere, Kylie and Kendall Jenner were in the Bing Box, asking different celebs to sing Justin Bieber’s new song “Under The Mistletoe”! The best was when Cody Simpson started belting it out!