Some people may question whether Ugg boots are "cool," but when you have the likes of Jennifer Lopez and Rihanna wearing them, it's hard to doubt the fact that the brand is in people's good graces again. I certainly wore them with abandon in the early 2000s, but what's old is new again, after all. 

I put together a preview of how celebrities are wearing Ugg boots nowadays, and the outfits include everything from leggings and sweatpants to baggy jeans and shorts. So without further ado, scroll down to see how J.Lo, Rihanna, Hailey Bieber, Selena Gomez, Irina Shayk, and Katie Holmes are all wearing Uggs, and shop the brand for yourself. Plus, I also included similar brands since Ugg styles tend to sell out quickly. 

On Irina Shyak: Ugg Ultra Mini Classic Boots ($140)

On Jennifer Lopez: Ugg Coquette Slippers ($120)

On Hailey Bieber: Coach Signature Cardigan ($495); Ugg Neumel Platform Booties ($150); Saint Laurent sunglasses

These are selling out so fast. 

On Hailey Bieber: Fear of God blazer; Saint Laurent Le 5 à 7 Croc-Embossed Leather Bag ($1850); Jacquemus hat; Ugg Fluff Yeah Genuine Shearling Slingback Sandals ($100)

If Hailey's blue versions sell out, there are still several other amazing colors to choose from. 

On Rihanna: Raf Simons oversize denim shirt jacket; Trapstar London hoodie; Dior tote; Off-White x Warby Parker sunglasses; Ugg Classic II Short Boots ($170)

On Katie Holmes: Ugg Classic II Short Boots ($170)

The OG style never gets old. 

On Selena Gomez: Ugg boots

This button-adorned style is just too cute. 

Copy Hailey Bieber, and wear these with high socks. 

This blue color is a fresh alternative to the classic brown. 

These slippers are like walking on a cloud. 

I'm obsessed with these shearling slippers. 

These tall versions are guaranteed to keep your legs warm. 

The rainbow versions of the Fluff Yeah sandals are so charming. 

Another must-have pair of slippers. 

Shop Cozy Shoes From Other Brands

These are selling quickly at Nordstrom. 

I love this seafoam green color. 

Perfect for keeping your feet nice and toasty. 

Fur-lined booties are essential for freezing temperatures. 

Hurry: This sale price won't last forever. 

I love this baby blue color. 

Dolce Vita never gets it wrong. 

Next, Jennifer Aniston and J.Lo both wore the denim trend I'm replacing skinnies with.