Jemima Khan
Jemima Khan completed Hajj in 2007Dylan Martinez/Reuters

Hundreds of thousands of Muslims have descended on the holy city of Mecca in Saudi Arabia as part of the annual Hajj pilgrimage.

For five days, pilgrims of every ethnic group, age and social status from all over the world will pray as one community and take stoke of their blessings as they complete the fifth and final pillar of the Islamic faith.

It is a religious duty all Muslims - who are physically and financially able - must undertake at least once in their lifetime.

For wealthy celebrities, making the once-in-a lifetime trip to promote the bonds of Islamic brotherhood and sisterhood is that much easier.

Former boxing champion Mike Tyson travelled to Mecca in 2012 shortly after converting to Islam.

"I just left the Holy City of Mecca where I was blessed to have been able to make Umrah...Inshallah {God willing], Allah will continue to bless me to stay on the straight path." He tweeted at the time.

IBTimes UK takes a look back at other stars who have visited the holy city.

Jemima Khan

Jemima Khan, who became a Muslim a few months after she married Pakistani cricketer and philanthropist Imran Khan in 1995, completed Hajj in 2007 following their divorce.

Jemima Khan
Jemima Khan and her former husband Imran Khan.Getty

Amir Khan

Bolton born welterweight champion Amir Khan shaved his head especially for his trip to Mecca in 2011. He decided to make his spiritual journey during Ramadan, the holiest month of the Islamic calendar.

Amir Khan

Mike Tyson

Mike Tyson is thought to have converted to Islam during his time in prison. He completed the holy pilgrimage to Mecca, Saudi Arabia, in July 2010. During his trip he shared this picture of himself in front of the Holy Ka'aba.

Mike Tyson
Former boxing champ Mike TysonTwitter

Husain Abdullah

In 2012, NFL star Husain Abdullah skipped the entire season to go on a Hajj pilgrimage to Mecca with his brother, another NFL player. The devout Muslim reportedly turned down millions to make the spiritual trip.

Husain Abdullah
NFL star Husain Abdullah skipped a season to go on the pilgrimageGetty

Aamir Khan

In 2012, Aamir Khan became the first Bollywood actor to be granted a visa to travel to Mecca. He completed the pilgrimage with his mother Zeenat Hussain.

Aamir Khan
Bollywood actor Aamir Khan completed the pilgrimage with his motherVarinder Chawla

And finally....

Paris Hilton

American socialite and hotel heiress, Paris Hilton raised eyebrows in 2012 when she travelled to the Muslim holy city of Mecca in Saudi Arabia, not to get closer to Allah but to open a store.

Although non-Muslims are not typically allowed in the holy City, the Saudi government made an exception.

Paris Hilton
Paris Hilton opened a store in Saudi ArabiaReuters