Beyonce Knowles and JAY-Z will marry on Friday night (04Apr08) at the rap mogul's New York apartment, according to sources close to the couple.
Workers have been spotted setting up an event inside a block in the city's TriBeCa neighbourhood, where rapper Jay-Z owns a luxury home.
A marquee has been erected on a terrace at the building, and elegant bouquets of white flowers and candelabras have been delivered.
It's rumoured just 30 people will be present at the all-white ceremony, including close family members and Knowles' Destiny's Child bandmates, Kelly Rowland and Michelle Williams - who are known to be in New York.
Jay-Z's pals Kanye West and Pharrell Williams are also expected to be among the wedding party.
The date is very special for the couple - four is a number close to both bride and groom. Jay Z was born on 4 December 1969 and Knowles was born on 4 September 1981.
The rapper - real name Shawn Carter - also owns a nightclub franchise called 40/40 and he and Knowles are rumoured to have matching 'IV' tattoos on their ring fingers.
The couple is also planning a second wedding celebration in France on 4 May (08), according to reports.
Their producer pal Dallas Austin says, "It's about time. I think it's great that they're getting married."
As WENN went to press, Beyonce's former Destiny's Child bandmate Kelly Rowland arrived at the building, dressed in a white gown, minutes before Jay-Z's pals Chris Martin and Gwyneth Paltrow.
Beyonce's mother and father, Tina and Mathew Knowles, her sister Solange and Jay-Z's mother have also arrived at the TriBeCa apartment block, where the nuptials appear to be imminent.