The Oireachtas Public Accounts Committee is expecting to hear clear, detailed and honest answers from Ryan Tubridy and his agent Noel Kelly when they appear before the Committee early next week.
The committee chair said it would have compelled them to attend, if they had not volunteered to do so.
PAC has sent a detailed list of questions it wants answered when they appear early next week.
Chair and Sinn Féin TD Brian Stanley said he expects detailed and truthful answers from both individuals:
"My advice to them is, come in, be upfront, be fulsome in your information, don't be anywhere reticent. It's better to get it all out there. I think the public will hold people in better life when they're when they're interesting to be truthful, when they're seen to be upfront".