Lisa Snowdon & Brendon Cole, Rachel Stevens & Vincent Simone plus Tom Chambers & Camilla Dallerup will all dance in the final next week.
The decision was made because radio show presenter Lisa and singer Rachel tied with 75 points each from the judges. Lisa's Argentine Tango was incredibly sexy and Rachel's American Smooth was a delight.
This meant that Holby City star Tom would definitely have been in the dance-off - whatever way viewers voted.
The BBC decided that it was better to finish the show early and carry the votes over to next week.
The dancing couples were all clearly delighted to be told nobody was leaving and celebrated together on the dance floor.
Alesha Dixon & Matthew Cutler beat EastEnders star Matt Di Angelo & Flavia Cacace in the 2007 final.
It was the first time that Strictly's final had only two pairs of contestants. Model Kelly Brook was a strong contender to take the 3rd place but pulled out of the show after her father died.
This year it was political journalist John Sergeant who quit. Though his 'flat-footed' dancing was savaged by the judges, he was a huge hit with the public.
'The trouble is that there is now a real danger that I might win the competition,' John explained before waltzing off.
Click on the clip below to watch the moment they were all told they'd be in the final again.