Celebrities spend thousands of pounds, and hours on end, perfecting their look.

So perhaps it is no wonder that it is hard to tell the real stars apart from their waxworks.

The expert artists at Madame Tussauds aim to create a perfect likeness - but how have they done?

1. She's the only girl in the world: But which Rihanna is the real one?

2. She's best known for her role in Friends: Try to identify the genuine Jennifer Aniston

3. Titanic struggle: Which Kate Winslet survived the iceberg and which has a frozen stare?

4. Wax lyrical: One Taylor Swift is in the Songwriters Hall of Fame — the other’s in Tussauds

5. A wax-twerk: Which Miley Cyrus could not do the saucy dance?

6. Hot stuff: One of these Sandra Bullocks must avoid The Heat

7. Hello, it’s Adele: Her voice could melt your heart . . . her model could simply melt

8. Lord of the Deadringers: Only one of these Cate Blanchetts starred in the Tolkien movies

9. Choose that girl: Well Madonna likes to say she’s a model mum

10. Pitt your wits: Could hubby Brad spot the authentic Angelina Jolie?

11. Two Pretty Women: But which Julia Roberts won Hugh Grant’s heart in Notting Hill?

12. Double stubble: Finally, Ed Sheeran demonstrates that real men can look like models too

So how did you do? In the odd-numbered photographs, the real stars are on the RIGHT and the waxworks on the LEFT.