Reese Witherspoon models Beyonce's Ivy Park x Adidas collection ahead of its launch

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Beyonce announced she had teamed up with Adidas to re-launch her fashion label Ivy Park, which she founded in 2016, in April last year.

Nine months later and her Ivy Park x Adidas unisex athleisure line is just days away from its official release on January 18.

Ahead of the official launch, the 38-year-old singer has treated her celebrity pals to pieces from her highly anticipated range, including Reese Witherspoon.

The Big Little Lies actor took to Instagram to capture her unboxing the giant orange box filled with Ivy Park garments, and modelling each look.

She captioned the clip: “Does this officially make me the newest member of the #Beyhive? Thank you, @Beyonce for the #IvyPark swag!”

In the video Reese can be seen slipping into a hooded short sleeve jumper with maroon leggings, a burgundy beanie hat and matching Adidas trainers.

She then changes into a longline sweater, before she donned a maroon and orange striped jumpsuit, bright orange beanie hat and trainers.

To end the fashion show, Reese stunned in a maroon asymmetric figure-hugging dress before she strutted off camera.

Beyonce’s range includes everything from outerwear, such as jackets, as well as leggings, shorts, jumpers, dresses and shoes.

Customers can expect to buy classic workout gear, such as hoodies, joggers, longline t-shirts, as well as crop tops and short co-ord sets.

But, in true Beyonce fashion, there are some edgy pieces in the Ivy Park line, such as a maroon long sleeve body suit and an orange ruched jumpsuit with belt detail.

The Ivy Park X Adidas collection is tipped to range from $25 (£19) to $250 (£191), and is a “dream come true” for Beyonce.

Speaking about her latest venture in a statement, she said: “It is a dream come true to re-launch IVY PARK as the sole owner.

“From the accessories to the clothes and footwear, I wanted to design and re-imagine pieces that serve as favourite armour for anyone who acknowledges the strength in their individual style and lives freely and boldly.”

Ivy Park launches 18 January - shop the collection here.