Comedic superstar Chris Rock, actress Kristen Stewart and Stephen Mangan hang out on the red couch this Saturday. See what happens when Graham shows them hilarious notes that teachers sent home about naughty students.

Cate Blanchett talks butt doubles. And Ewan McGregor tells us about getting naked onstage. Watch an exclusive clip from the premiere of  Season 11!

Who said what on Graham's famous red couch this season? Match these outrageous quotes to one of his celebrity guests in our quiz.

Check out the celeb snaps of the past and present.

Relive some of the celebrity knee-slapping moments from Season 10 and more.

He's is one of the UK's most popular television personalities.

Saturday night is a total hoot on BBC America!