Joined by BOC International Affairs coordinator Maryam Mardana, the IOC's Athletes Entourage
Committee member will be involved in discussions during the two-day meetings, scheduled for January 14 and 15.
According to a ministry probe, results of which were released Thursday, Matsuo paid foreign hotel bills for prime ministers and their entourages during overseas trips using his own credit cards.
Police suspect Matsuo was reimbursed from the secret funds and the Foreign Ministry for the entourages' hotel bills, the sources added.
Even accounting for her brother Michael's touring circus, she has one of the most bizarre entourages on the planet.
Most gangster rappers employ huge entourages (Eminem has at least 50 minders and assistants with him at all times), most of whom have names such as MC Psycho Killer.
One of the most committed entourage obsessives has to be diva Jennifer Lopez, who travels with up to 100 hangers-on.
Muscle-bound heavies aren't even enough for her equally ego-driven peer Christina Aguilera, who demands a police escort in addition to her 12- strong entourage whenever she is performing.
Combs' entourage embarrassed the star further when two of them attacked Australian actors Heath Ledger and Naomi Watts for the crime of dancing too close to the Diddy at the VH- 1 Fashion Awards after-show party.
However, Team Puff were on the receiving end recently when some of his staff were allegedly involved in a drive- by shooting, rumoured to have been organised by the entourage of rival rapper Lil'Kim.