I saw this on BBC and I only got 2 out of 7. I guess I'm not to informed of the goings on of the world. :)
7 "Cheers"; 6-4 "Half-full"; 3-0 "Bottoms up"
2-7... got that because of lucky guesses.
I guessed lucky on the Justin Bieber one.
I wouldn't have know where he performed, if his hair was on fire and Dementors with fire extinguishers were trying to put it out for him... at that time.
True, I don't know how I didn't think about that.
I don't even remember which other one I guessed right on.