Gareth and Will got 39.8% and 39.3% respectively of the vote.
But Gareth remains the favourite to win.
But after the disappointing news, Darius said: "This is not the end. This is just the beginning."
Darius wasn't expected to get as far as the semi-final after earning a reputation for being arrogant.
And he'd already been voted off Popstars.
Gareth and Will must now campaign to win the public's vote for a week.
The final is on 9 February.