Wait until you hear this - Dame Maggie Smith makes her first British chat-show appearance in 42 YEARS tonight, as she joins Graham to talk about her new film The Lady in the Van, an adaptation of the memoir of playwright Alan Bennett. 42 YEARS! The 80-year-old actress will also be chatting about the final season of Downton Abbey, although apparently she has yet to watch an episode of it.

Her co-star Alex Jennings will be alongside Maggie on the sofa too, while Graham also welcomes four-times Oscar-nominated actor (and roide) Bradley Cooper as well as Sienna Miller, who are co-starring in new culinary offering Burnt.

While a young fella called Justin Bieber will also be in for a chat and to perform his chart-topping single What Do You Mean? You may have heard of him.

Maggie Smith and Justin Bieber hanging out together, that's a sight we never thought we'd see.