I had one recently and chose 'Classic Collaborations' as the theme:
1. In 2000, evil Christina Aguilera released a duet with a notorious ladies' man. Who was it? For a bonus point, what was the name of the song?
2. In 2007, Girls Aloud and Sugababes released the definitive version of straight guy favourite Walk This Way. Which of the track's 8 stunning vocalists began the first verse? 2 points for the singer, but 1 it's the wrong singer, right group.
3. In 2008, 13 female singers of varying levels of worldwide fame sang together on a charity song called Just Stand Up. How many can you name? 1pt for each 3 (max 2 points)
4. The legendary icon Mariah Carey has had a number of notable collaborators during her unparallelled career, including Whitney Houston and Westlife. Can you name a solo male artist she has duetted with? Bonus point for a 2nd.
5. In 2012, two female r&b singers released a duet called It All Belongs To Me, which was a flop. It wasn't their first collaboration, though, and the previous one was a huge worldwide hit. Can you name it? Bonus point for the year it was released.
6. Cheryl Cole performed a remarkable duet at the Queen's Diamond Jubilee Concert, also in 2012. Who was her lucky co-performer? Bonus point for the name of the song.
7. George Michael and Amy Winehouse both appeared on the debut solo album by a member of a pop group. Who was the artist? For a bonus point, name either of the songs.
8. Melanie C and Bryan Adams had a hit with When You're Gone in 1998. How many times are the words "when you're gone" sung in the song? Including backing echoes. (Answer: 12) For a bonus point, which pin-up actress did Adams also record the song with?
9. Not a musical collaboration, but Mark from Westlife shared bodily fluids with a guy called Kevin McDaid from another, less successful, boyband. What was the group called? Bonus point: name any of their songs.
10. On her first album, Britney Spears duetted with a singer called Don Philip. They would meet again in a very public setting over a decade later. What was the context of this meeting? Bonus point for the year it took place.