It's the final live show of The Greatest Dancer tonight - here's how to vote online for FREE to help your favourite win.
The online vote opens the exact same time as the phone vote as announced in tonight's show after all of the acts have danced.
Lines freeze and close the same time as the phone vote which will be announced on the night by hosts Alesha Dixon and Jordan Banjo.
At the end of the night, this week the winner will be crowned as The Greatest Dancer is named.
How to vote on The Greatest Dancer for free online
In order to vote you'll need to register for a BBC ID if you don't have one already - Register for FREE HERE.
You can then vote when the lines open by going straight to the The Greatest Dancer BBC homepage and clicking on your favourite.
The online votes will be added to the phone votes to give the overall public rankings.
In the final the voting will freeze after all four final acts have performed for the first time. Then, the act with the fewest votes will be eliminated. The lines will then re-open for the final three acts as they perform again.
Lines will then close for good and the winner will be revealed.
Going into the live shows, The Greatest Dancer captains Cheryl, Oti Mabuse and Matthew Morrison all had three acts in the running.
Cheryl's squad was made up of all girl dance group Dan Bates Collective, duo Harry & Eleiyah and four piece street group Frobacks.
Matthew's team included commercial-contemporary fusion dance group Company Jinks, teenage dance duo James & Oliver and street crew Prospects Fraternity.
Finally, Oti selected Latin formation group KLA, 14-year-old contemporary solo dancer Ellie and drag act Globe Girls for her final three.
In the first week, Oti lost The Globe Girls who became the first act to be eliminated. In week two, Company Jinks and Prospects Fraternity went home while last week we said goodbye to Frobacks and Dan Bates Collective.
Now just four acts remain - but only one can be crowned The Greatest Dancer and win £50,000 and perform on the Strictly Come Dancing stage!
The Greatest Dancer airs Saturday nights live on BBC One.