• Adam Levine
    Adam LevineInstagram/Adam Levine
  • Emily Blunt planking in 'Edge of Tomorrow'
    Emily Blunt planking in 'Edge of Tomorrow'screenshot/youtube
  • Madonna

The 6,000-year-old practice of Yoga, which aims to integrate the body and the mind, was commemorated by the United Nations General Assembly on 11 December 2014, by naming 21 June as International Yoga Day.

Today, Yoga is not indigenous to Indian subcontinent, but also the Western countries.

Yoga, a physical, mental and spiritual discipline, practised by ancient Indians, found its way across the world in the late 19th and early 20th centuries. Many Westerners, especially those who live a high-profile life, have expressed their gratitude to Yoga, for keeping them stress-free and calm even during strenuous days.

Ahead of the International Yoga Day on Sunday, take a look at some of the celebrities who give credit to Yoga for keeping them in shape:

Adam Levine: Tagged the "Sexiest Man Alive" of 2013 is an avid practitioner of Yoga and practises it every single day. He also has a tattoo of the Sanskrit word "Tapas" on his chest, which translates to meditation.

Emily Blunt: The English actress has been religiously practising Yoga for a while now, but it is her single-handed planking Yogasana in the movie, "Edge of Tomorrow", which got everyone's attention.

Robert Downey Jr: "Iron Man" himself is committed to Yoga, and during an interview with him, interviewer Rebecca Winters Keegan for TIME magazine wrote, "He's fit, mellow and reflective after a morning of power-flow yoga with his teacher Vinnie Marino, part of what could be called Team New Downey, a large coterie that includes yogis, massage therapists, martial-arts instructors and people who know about herbs."

Madonna: The singer practises Ashtanga Yoga, which makes for an effective cardio work-out as well as a isometric body-weight bearing exercise. It is also said to encourage more dynamic movements between each Asana.

Mathew McConaughey: The 45-year-old Academy Award winning actor has been spotted by at the beach, practising yoga.