Noah Cyrus was spotted taking her pastel pink Paul Frank bike for a spin with a pal yesterday, and it looks like the little ladies had a blast cruising the streets of Studio City.

So what's her big sister Miley been up to? Aside from hanging out with longtime love Liam Hemsworth and preparing to promote So Undercover, she's been catching up on her favorite TV shows! On Monday Miley tweeted, "Don't know whats better.... The AWESOME Mac & Cheese I made for @theBrandiCyrus or @aplusk on 2.5 men tonight! Hahaha so friggen funny." It definitely seems like she's an Ashton Kutcher fan, because shortly after that she wrote, "#sheenroast HAHAHAHA." Sorry Charlie!

We always thought 11-year-old Noah Cyrus was trying to emulate her big sister Miley, but turns out that she wants to be just like her mom Tish!

Wearing matching outfits from their black v-necks to their grey sweats right down to their flip-flops, the girls headed out to run some errands in Studio City.

The only thing missing that would make them look even more similar is the padded push-up bra Noah was sporting a few months back!

Who wouldn't want Miley Cyrus as their big sister?! Noah Cyrus must be the luckiest 11-year-old in the world to have the queen of all teen queens as her older sibling.

And with all Miley's fame, she still takes time out to share lunch at Sharky's with her little sis.

Miley Tweeted today: "Getting my nails done with @theBrandiCyrus @partyyandnoiee and my mommy :) girls day is the best!"

Finally, a superstar who's still down-to-earth!

Miley Cyrus' little sister Noah was snapped with pal Bella Thorne in Hollywood last night, and before you freak out over the 11-year-old hitting the club scene, keep in mind that she was at Christian Combs' 13th birthday bash. Yup, he's Diddy's son, and the music mogul made sure there was everything from a red carpet to a fancy cake at the party.

The event was held at the Rolling Stone Restaurant & Lounge, and Noah's super famous big sister may not have been her plus one, but it looks like the pint size starlet still had a blast!

Miley's little sister went from frilly, Can-Can dress designing 9-year-old to a tough 11-year-old sk8tr girl!

The younger Cyrus was riding the rails outside of her Toluca Lake home yesterday dressed appropriately in skinny jeans, Vans and a knit beanie.

Although Miley's precocious younger sis was in the company of a much older man, she doesn't seem to be following in Miley's footsteps quite yet -- the sk8tr boi seems to be teaching Noah the ins and outs of the board.

Noah hadn't been seen too much during her recent family turmoil. But since Billy Ray and Tish reconciled, we've seen the younger Cyrus shopping with her sister and spending time with her fam -- all with a big smile on her face!

Even though some think she's growing up too fast, Miley Cyrus' little sister Noah ditched her padded push-up bra for a more age-appropriate outfit and took the dog out for a walk yesterday afternoon near her Toluca Lake home.

Glad she has a smile on her face! One can only hope that young Noah Cyrus is healthily coping with her parents' divorce. Thankfully she has big sister Miley to turn to in situations like these...

Miley Cyrus' 10-year-old younger sister Noah and Will and Jada's 9-year-old (she'll turn 10 on Halloween) singing superstar Willow have a lot in common... they both come from famous families and they're both growing up pretty quickly!

Willow Smith just released her single "Whip My Hair" and has signed to Jay-Z's record label Roc Nation. She also made her acting debut alongside dad Will in I Am Legend and later co-starred in Kit Kittredge: An American Girl AND voiced a character in Madagascar: Escape 2 Africa.

Noah Cyrus appeared on Miley's Disney show Hannah Montana, the direct-to-DVD movie Mostly Ghostly and had a main role in the animated English version of Ponyo. Plus, we kinda think the future tween has been dressing somewhat inappropriately for her age - yes, that includes wearing a padded push-up bra out in public with her mom and sis!

Willow, at least, dresses her age when stepping out with her family. But isn't 9 or 10 too young to start becoming famous? Especially when both families are already familiar with the celebrity world and know how hard it can be at such a young age?

Now that Miley has quit her cash cow Disney series Hannah Montana, Tish Cyrus is turning to her youngest, Noah, to try and create the next tween phenom.

Tish took the ten-year-old, who looks as if she dyed her hair darker for a more serious look, to an audition yesterday in Beverly Hills.

Let's hope (for her parents' sake?) that she nailed it!