Billie Piper shows off her style credentials in tailored black blazer at the Chelsea Flower Show

Billie Piper looked effortlessly stylish on Monday as she attended the Chelsea Flower Show VIP and press preview day held at The Royal Hospital in London.

The actress, 40, showed off her expert fashion sense in an oversized fitted black blazer.

She styled it with sleeves rolled up and paired it with black wide-leg pants with white stitching.

She packed her essentials into a small black handbag and added a pair of sparkling diamond earrings.

Billie added a few extra inches of height to her frame with a pair of quirky black leather and gold high heels.

Fashion ahead: The actress, 40, showed off her expert fashion sense in an oversized fitted black blazer

Trendy: She styled it with rolled-up sleeves and paired it with black wide-leg pants with white stitching

She wore her dark locks pulled up in a bun and tied with a ribbon, with several strands hanging down to frame her face.

The Doctor Who star completed her stunning look with a light makeup palette to accentuate her beautiful features.

Her appearance comes after Billie’s lookalike sister Elle, who goes by the name of Pippy, took to Instagram last month to pose in a bikini.

The I hate Suzie star, 30, looked simply sensational in a color clashing bikini as she sizzled in chunky boots and against a stunning backdrop.

Elle struck her sultry pose as she lifted one hip and held a beer as she stared at the camera with her hair loose around her face.

For years, Elle’s uncanny resemblance to her sister has puzzled fans, with many social media users stunned at their similarities.

They starred opposite each other in I Hate Suzie and played sisters on the show. Elle plays Archie on both seasons of the hit show, in what is her only TV credit.

Elle makes sure her social media is littered with sizzling snaps ranging from the artistic to the sexy, including some racy photos.

She also acted as Billie’s date to the BRITs in February, where the duo put on a sensational performance on the red carpet in sexy ensembles.

In 2017, Billie’s Instagram followers went haywire after the star shared a rare photo of her younger sister.

She took to Instagram to share a photo of her sibling praising her for her fashion line — leaving fans in shock at the uncanny resemblance between the two.

While Billie praised her sister for being a “little con artist,” followers were more taken by their likeness, as she admitted they were confused about who was who.

Fancy footwear: Billie added a few extra inches of height to her body with a pair of quirky black leather and gold high heels

Bikini babe: It comes after Billie’s lookalike sister Elle, who goes by the name of Pippy, took to Instagram last month to pose in a bikini

Wow! She also acted as Billie’s date to the BRITs in February, where the duo put on a sensational performance on the red carpet in sexy ensembles.

It’s the same person! Elle (R) – has the same defined features as her, including big lips and strong eyebrows – and the reveal has sent her Instagram fans wild

She took to her social media platform with a picture of her sister in a short bardot top and briefs to help her promote her Pipers Women clothing line.

She captioned the snap, “Sister can be tricky but my god they are impressive…. check out this little hustler @pippy.piper @pipers.clothing.

‘If you want to feel casual and FIT’ This is your brand. And if you like dressing your sons in leggings, there’s a kid’s line you can follow. #yessiter.’

Despite the post being about Pippy’s upcoming collection, Billie’s 153,000 followers couldn’t help but point out that they look exactly the same.