mayerYahoo's 39-year-old CEO Marissa Mayer apologized to Interpublic for being two hours late to a dinner it arranged during the Cannes festival with advertisers of the struggling online media company.

Michael Roth, CEO of IPG, hosted the dinner for about 30 top marketing and media buyers from companies including Mondelez International, Chobani, MillerCoors, AOL and Microsoft with Yahoo's chief and marketing staff.

Mayer was to brief the attendees of Yahoo's plans. But she fell asleep and was late to the meeting.

She told Bloomberg News: "I think the dinner is unfortunate how much attention it’s gotten. I was late. I apologized to IPG at the time and in no way meant for it to be a slight to them."

Roth left the restaurant before Mayer arrived.