Presented by Sam & Mark and Naomi Wilkinson, the first contest aired between 14 and 18 March 2011, and was won by Soulmates.
In the first round the three groups took turns to perform part of the same song as an ensemble (but all on the stage at the same time) with points being deducted for any featured vocals.
The second round featured the groups taking it in turns to perform a song of their choice, but this time allowing solo/featured vocals with points being awarded.
The final round saw the glee clubs taking to the stage individually and performing their "survival song".
[3] Initial auditions take place in Glasgow, Manchester, London, Belfast, Birmingham, Bristol and Newcastle in front of vocal coach John Modi.
The judges' auditions in the third series featured Carrie and David Grant, vocal coach John Modi (who also took part in the heats from the third series) and guest judges Dionne Bromfield, Stacey Solomon, and Joe McElderry.
Gomez did not feature in the judges' auditions for the third series, but joined the Grants and Modi from the heats onwards.