Dancing with the Stars returned for a fourth series which began on 5 January 2020 on RTÉ One.
Nicky Byrne and Jennifer Zamparelli returned as hosts for a fourth and second series, respectively. The spinoff show Can't Stop Dancing did not return.
Brian Redmond, Loraine Barry and Julian Benson returned as judges.
In November 2019 it was confirmed the professional dancers, Curtis Pritchard, Ksenia Zsikhotska, Valeria Milova and Vitali Kozmin would not be returning for this series. They were replaced by Laura Nolan, Kylee Vincent, Pasquale La Rocca and Stephen Vincent.
The final on 15 March 2020 was won by Lottie Ryan alongside professional dancer Pasquale La Rocca.
On 1 December 2019, Glenda Gilson was announced as the first celebrity to be taking part. The remaining celebrities were announced across the following week.
This table only counts for single dances scored on a traditional 30-points scale. It does not include the Team Dance or Marathon scores.
The highest and lowest performances in each dance according to the judges' scale are as follows.
Unless indicated otherwise, individual judges scores in the charts below (given in parentheses) are listed in this order from left to right: Brian Redmond, Loraine Barry, Julian Benson.
Guest act: Series 3 champions, Mairéad Ronan and John Nolan performing a Viennese Waltz to 'You Are the Reason'.
Guest act: Vincent Simone and Ksenia Zsikhotska performed an Argentine Tango to 'La cumparsita'.
Guest act: Julian Benson with Fly Youth performing, 'Cha Cha Boom'.
Dance-Off
Judges' Votes To Save
Individual judges scores in the charts below (given in parentheses) are listed in this order from left to right: Brian Redmond, Loraine Barry, Darren Bennett.
Due to an illness, Darren Bennett filled in for Julian Benson for the night.
All performances this week are accompanied by the RTÉ Concert Orchestra.
Dance-Off
Judges' votes to save
Darren Bennett filled in for Julian Benson for the second week running.
Dance-Off
Judges' votes to save
For the third week running Darren Bennett filled in for Julian Benson.
Guest act: The cast of On Your Feet! performing a Gloria Estefan medley.
Dance-Off
Judges' votes to save
This week was scheduled to be the semifinal, however due to the COVID-19 pandemic, it was announced on the day of that it would be the final and the public would crown their winner.
The couples first performed one unlearned dance followed by a trio dance. For the trio dances each couple was joined by one eliminated pro dancer.
Darren Bennett filled in for Julian Benson for the fourth week running.
Guest act: Nathan Carter performing 'May the Road Rise'.
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