Looks like they had fun!

On Sunday, Kate Bosworth and Michael Polish were enjoying a friend's funny antics while together at this year's Coachella Music Festival.

The 30-year-old actress also was there to share her wares as she showed off some of her designs for TopShop, which will be in stores next month.

Nothing wrong with some business mixed in with pleasure!

On Monday, a svelte Kate Bosworth and Michael Polish took some time out of their busy schedules to do some light shopping at Pacific Design Center in Beverly Hills.

The 29-year-old actress and her 42-year-old fiance just finished working together on his film Big Sur, which is set to premiere at the 2013 Sundance Film Festival. They're inseparable in so many ways!

Kate Bosworth is adding a whole lotta sex appeal to the holidays in a stunning Christmas campaign for Topshop.

The blonde beauty performs a sultry version of the classic song "Winter Wonderland" in a mini-movie released by the clothing company.

Michael Polish, Kate's fiance, directed his bride-to-be in this beautifully-shot performance. Kate's custom-made Topshop evening dress is to die for.

Topshop is also hoping that her version of "Winter Wonderland" will make it to the Number 1 spot on iTunes during this holiday season. Time will tell!

Look at that rock!

Kate Bosworth unintentionally let the cat out of the bag earlier this year when she referred to her director beau Michael Polish as her "fiance" in a blog post for Vogue travel, and now the Blue Crush star is confirming the happy engagement news and showing off her enormous diamond on her WhoSay page.

"This photo was taken by my husband-to-be. Thank you for all the wonderful engagement wishes... we feel truly blessed," she wrote to her fans.

The pair, who have been dating for over a year, met on the set of their movie Big Sur.

The Straw Dogs actress dated Pirates of the Caribbean actor Orlando Bloom for several years before moving on with True Blood hunk Alexander Skarsgard, with whom she split in July 2011.

Congrats on landing Prince Charming, Miss Bosworth!

Kate Bosworth is officially off the market!

The Wonderland star slyly announced on a recent blog post that she is engaged to her director beau, Michael Polish, after recently returning from a trip to South Korea.

The 29-year-old shared:

"On our first day in Seoul, my fiance, Michael Polish, and I venture out to discover Changdeokgung Palace."

Bosworth and Polish met on the set of Big Sur, which hits theaters later this year, and they made their official debut as a couple at a Coldplay concert in August 2011, after the actress ended her two-year relationship with True Blood star Alexander Skarsgard a month prior.

It was only a matter of time before Kate made the engagement announcement; we spotted them wearing matching rings way back in October.

Congrats!

Kate Bosworth has always been a fashion risk taker, so it doesn't surprise us that she can make a seafoam green see through skirt and high tops look chic!

The 29-year-old fashionista hit up Byron & Tracey Salon in Beverly Hills to get her locks done, and she must have been in a rush because she left with her wet hair in a simple bun.

Is that a ring on her wedding finger? Could the Blue Crush babe be hiding an engagement from us?

She's been rocking the gold band for a while now, but based on her recent comments about director boyfriend Michael Polish, we have a feeling these two are planning on making it permanent! "I had my single moment in my life, but... I'm happily settled now," she gushed at the Life Happens premiere.

Watch the video to see what the blond beauty has to say about wedding rumors!

Flawless fashionista Kate Bosworth channeled the laid-back LA lifestyle in a pair of skinny jeans, matching denim top and brown ankle boots as she made her may to a meeting at the Screen Actor's Guild building, on Wednesday.

Although the Blue Crush star does use a celebrity stylist to help get her red carpet ready, it's her everyday style that has captured the attention of her A-list peers.

Rosie Huntington Whiteley recently revealed to The Hollywood Reporter that she actually hired Bosworth's stylist to try and achieve her unique look. "I was looking for a stylist to help with my Transformers press tour last summer, and I asked my publicist, ‘Who styles Kate Bosworth?’ because I’ve always admired her style.”

Imitation is the sincerest form of flattery, after all!

Talk about a sexy snow bunny! Kate Bosworth cruised through the falling snow while taking in the Sundance Film Festival in Park City, Utah.

Ms. Bosworth is currently promoting her latest film Black Rock at the annual festival.

The long black coat and boots are perfect for the snowy conditions, but the jeans ... not so much. If those get wet, could make for an uncomfortable day!

See more of the celebrities who are chillin' in Park City in the gallery below.