Pharrell Williams' favourite accessory is the "the larger style" Gabrielle Chanel bag.

Pharrell Williams

Pharrell Williams

The 43-year-old musician has joined model Cara Delevingne, Kristen Stewart and Caroline de Maigret to star in the French label's campaign for their new handbag and fragrance line named after the fashion house's founder Gabrielle 'Coco' Chanel, and the vocalist has revealed he relies on a bigger version of the new product when he is travelling.

Speaking about his wardrobe must-haves, the 'Happy' hitmaker told Harper's Bazaar Online: "I have the larger style and it's great for travel.

"I wear it across the body, low slung like a messenger. I can be hands free with easy access to the things I need."

Although the star relies on the product when he is jet-setting off across the globe, he has revealed he doesn't fill it with many items, and will only pack the bag with five items, including a pack of strawberry mints, a book, hand sanitiser and a scarf in case he gets cold during the journey.

When asked about the contents of his bag, the fashion muse said: "I usually keep my phone and headphones in my pants pocket -- and add the Chanel's Gabrielle bag to carry my other essentials: aux cord, strawberry mints, a book, hand sanitiser and scarf."

Meanwhile Pharrell - who is married to Helen Lasichanh with who he has son Rocket and newborn triplets with - has revealed water is a "huge inspiration" for him.

Speaking previously, he said: "Of all the elements, the one I identify most with is water. I grew up in Virginia Beach. I live in Miami. I love boats and I adore being out in the ocean - it's the best feeling in the world. Sometimes I feel like I live on water. Most of my ideas come to me in the shower and the sea always inspires my work. So you can see why water is a huge inspiration to me."