Looks like Big Brother 10 is housing it's first ever great grandfather! EW confirmed the rumored 75 year old houseguest with Allison Grodner, exec producer of Big Brother.

"It’s the most diverse cast we’ve ever had in terms of ages, backgrounds,
points of view, and personalities," executive producer Allison Grodner says of
the next installment. "Big Brother 9 involved couples, singles, and soul mates
who were young, single, impulsive, and ready to party. We do a 180 with Big
Brother 10. This summer you’re going to find a 22-year-old body builder and a
75-year-old great grandpa in the house, and everyone else in between. We’ve had
diversity of age in past, but he's clearly the oldest contestant we’ve ever
had."

EW.com will have more from Allison Grodner on Friday.