Today is my Grandma MJ‘s birthday!!! She is honestly the best grandma ever, not to mention the most stylish woman I know. Every time I see her she always looks glam and fashionable!

This is one of my favorite pictures of us together. I love our matching red pants and knitted sweaters, LOL.

Happy birthday Grandma MJ! I love you so much!

We had a fun, intimate dinner at Soho House with friends and family to celebrate Robin‘s birthday! We’ve been friends for years!! It’s fun to look back at all our old pics through the years. So many memories!

I put all our pics together in the gallery, so make sure you click through!

Happy birthday Robin! I love you!

It was my mom’s best friend’s birthday and we surprised her with a fun dinner!

I am best friends with my mom’s friend Shelli‘s daughter, Allison and here are pics of the four of us celebrating Shelli’s birthday! My mom gets jealous that Shelli and I are so close, but it’s ok because Allison and my mom are also really close! We have all been bff’s for 30 years! How crazy!? Shelli and my mom have been best friends since before I was born and they had babies at the same time… me and Ali! So cute!

Today would have been Marilyn Monroe‘s 85th birthday. She was an icon of beauty and fashion, a woman who embraced her natural curves and she remains an inspiration to so many women, stylists, makeup artists and hair stylists to this day. These are some of my favorite photos of Marilyn. I bet she would have been just as beautiful had she been alive today.

We had a Mariachi band come to play to surprise Kourtney for her birthday! I am sure it’s not really a surprise, since we do it every year for her, but we had so much fun!!!

Check out these pics of us celebrating Kourtney’s birthday! More family vacation pics to come… but if you missed my pics from our first night in Mexico that I posted yesterday, you can see them here.

Happy birthday to the best big sister in the world! We’ve been through so much together and I love you so much!! Thank you for always being there for me. You’re an amazing sister and an even more amazing mother to Mason.

Happy birthday, Kourt! Leave your birthday messages for Kourtney in the comments.

We celebrated Rob‘s 24th birthday in Las Vegas last week! The whole crew came! His best friends, Jessie, Kappy, Ryan, Adam, and Roxy were all there!

Khloe and I went with Malika and Khadijah and we all had so much fun!!!! It got pretty crazy! Khloe and I left at like 3am to drive back to LA…. I was pretty exhausted the next day!

The other night Khloe and I attended Eva Longoria‘s 1920′s themed birthday party! What a fun theme!!? Robin Antin, Heidi Klum and Loren Ridinger were all there to celebrate with Eva. Such a fun night with the girls.

In honor of Rob‘s 24th birthday I wanted to post my all time favorite photo of my wonderful brother. Gosh Rob, you’re getting so old. I really miss the good old days. LOL!! When we were young, Kourtney, Khloe and I used to torture poor Rob. One day when Rob was six we forced him to dress up in mom’s clothes to make him look like a girl. When my dad came home he immediately grounded us all!! Rob, for all the times we tortured you, I am truly sorry.

Tonight on Kourtney and Kim Take New York, Kourtney, my friends and I head to Las Vegas for my 30th birthday!! I was kind of dreading turning 30, but so far it’s been a pretty good year :)

Watch the preview here and make sure you watch tonight on E! at 10/9c to see what we get up to in Vegas.

Mason‘s first birthday party was so much fun! Kourtney organized the most amazing carnival-themed party with a bunch of adorable farm animals, a carousel and lots of fun food!

Kiyan and I took a ride on the train together… I think I had just as much fun as Mason and the other kids did that day, LOL.

I’m slowly uploading all of my videos I’ve taken over the last few months! This one’s from the night I turned 30. I thought since we are all counting down to 2011 today, this was the perfect time to post it! Kourtney, the girls and I all gathered around the computer and counted down together!

My 30th birthday celebrations are some of my favorite moments from 2010. See more of my favorite moments here.

So far I’m loving my flirty thirties ;)

We celebrated Simon‘s birthday the other night at none other than Nobu.. our go to for a fab dinner with friends! I love you Simon!

Happy birthday to one of my best friends, Simon Huck!!!! You are an amazing friend and I love you soooo much! Here’s too a million more amazing memories!

Leave your birthday messages for Simon in the comments!

Happy birthday to the best mom in the world! You are my biggest inspiration and my best friend and I love you more than anything in the world!!!!

Look at mom all dressed up for her role as Fraulien Kost in the musical Cabaret. She had the lead role in the performance last week at the Class Act Musical Theatre!! She looks absolutely amazing! I’m so sad I wasn’t able to catch her on the stage, but I’m sure she’ll be recreating her performance for us all very soon, LOL.

Leave your birthday messages for mom in the comments and I’ll make sure she gets them!

My little sister Kendall turns 15 today!!!! Kenny, I love you so much!!! I can’t believe you are 15 yrs old! You promised me you wouldn’t grow up ;-)

And now look at you! Miss model extraordinaire!

I am so incredibly proud of you!!!! xoxo

Look at these amazing cupcakes my cousin Kara made for me for my birthday!!! How cute!?

I got so many beautiful birthday flowers and gifts. I feel so blessed to have such amazing friends and family. This was one of the best birthdays ever!

After the Angel Ball I had a quick wardrobe change and then it was off to my fabulous birthday bash on Loren and JR‘s amazing boat!

I wore a beautiful Zac Posen dress and Lorraine Schwartz jewelry.

I was going through all my pics from Vegas and found these pics of us at dinner at Tao before we went up to the club.

All my friends gave the most amazing toasts! Everyone went around the table and spoke… I seriously love my friends!! I have the best family and friends ever!

Mom got a little crazy in the kitchen at Tao in Las Vegas after my birthday party! Haha. Love you, mom.

Happy Saturday dolls!!!! Last night was my big birthday bash at Tao in Las Vegas and we all had the most amazing time. I’ll be posting all the pics from the party next week!

It’s always fun to spend a day or two in Vegas, but I’m glad to be heading back to NYC. I love the hustle and bustle of the city, but the hustle and bustle in Las Vegas can be a little overwhelming after a couple of days.

Here are some of my favorite press clippings from this week. Kourt and I have been having such an amazing time in NYC together. I love that I get to spend so much time with her and Mason and we’re both so excited about the new DASH.

What are you all up to this weekend?

Friday night is my big birthday party at Tao in Las Vegas and I can’t wait!

I celebrated my birthday there last year and it was so much fun. This year is going to be even better!! Watch the amazing video my friend Mike Snedegar put together for the event here.

The other night I went to Matt Goss‘s surprise birthday party with Robin Antin!

I went for a casual look and wore one of my favorite studded shirts!

Next month is my birthday month! You know what that means…

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To my little sister Kylie… Happy 13th birthday!! You are officially a teenager! :)

I love you ssoooo much and I’m so proud of you!!!

Leave your birthday messages for Kylie in the comments!

My mom and I took MJ to Malibu to celebrate her birthday!

I love you so much MJ and am so happy I got to spend your birthday with you!

Honestly we had the time of our lives this weekend…kicking it off with a party for Khloe on Loren and JR‘s boat! It’s the same gorgeous yacht that we are always having a blast on in Miami, and they bring it to NYC where they live for part of the year!

We all walked over to the boat from our hotel and just have fun quality family and friends time, eating, dancing, and drinking… yes I had a drink! I have never been a big drinker, in fact I really never drink at all, but I have decided that since I’m turning 30, I may have a drink here and there :)

We really had the best night ever!

To my little sis. A very happy 26th birthday!! So much has happened to you this last year, I can’t wait to see what amazing things this next year will bring. I love you more than life. Happy birthday Khloe!!

Brody turns 26 today!! Happy birthday Brody! I hope you’re feeling better!

Today is Kourtney’s birthday!

We’re gonna celebrate tonight by having a fiesta here in Mexico, so I’m really excited.

Feliz Cumpleanos, Kourt!