The act was sponsored by J.Lo by Jennifer Lopez, which was preparing to launch the clothing line in Europe; Kalomira's attire for performances and the music video was exclusively provided by the brand.

Critical response was positive, with the song being described as "infectiously catchy" by Tony Neophytou of London Greek Radio and Swedish newspaper Aftonbladet writing that it was reminiscent of Elena Paparizou, who had previously won the contest for Greece.

"Secret Combination" experienced commercial success, peaking at number one in Greece and entering charts in Belgium, Denmark, Finland, Sweden, Ireland, and the United Kingdom.

[2] The song was officially released to media by the Hellenic Broadcasting Corporation (ERT) at a press conference held at the Athens Hilton Hotel on 6 February 2008.

[10][11] In the Greek-British newspaper Eleftheria, Tony Neophytou of London Greek Radio described the song as "infectiously catchy" and "ethno R&B" and it reached number one on the station's Top 20 Chart.

[17][18][19] Greece's entry was sponsored by the J.Lo by Jennifer Lopez clothing brand, which was preparing to launch in Europe; as part of the deal, J.Lo was the exclusive designer of Kalomira's attire.

[21] It premiered on 14 March 2008 during New Hellenic Television's (NET) evening news program,[22] while international fans were able to view it through a satellite broadcast on ERT World.

[21] In some scenes of the video, impressive objects with bright colors such as a red Ducati motor bike, a huge disco ball, and large letters with the title of the song were used.

[30] Kostas Kapetanidis was the artistic director, while Julian Bulku organised the choreography, which included three background dancers; Victoria Halkiti and Nektarios Georgiadis provided backing vocals.

Tony Neophytou of London Greek Radio commented that "visually, the presentation was quite addictively enticing, with a stunningly gorgeous Kalomira, her singing/dance capabilities and her three acrobatic male dancers.