LOL, we totally didn't see this coming!

In a recent concert in Berlin, One Direction sang a cover of Celine Dion's classic song, My Heart Will Go On from the movie Titanic! Ummm... okay!

1D are the kings of the wooorld!

The boys claimed they barely knew the words, but we saw a clip of their performance and they certainly didn't get any of the lyrics wrong!

Our number one fave thing about 1D? Their music. Our second fave? Their hilarious sense of humour!

What random song should they perform next?