Rain Effect contains a total of ten tracks, including the lead singles "30 Sexy" and "La Song".

The album was primarily written and produced by Rain along with Bae Jin-ryeol (JR Groove), Jung Woo-young and Hwang Hye-kyung.

[3] With that announcement, Cube Entertainment confirmed a Zepp Tour in Japan and appearances at a MCM store opening in Singapore, Bazaar Men People of the Year ceremony in China and a fan meeting in South Korea.

[4][5] Rain delivered a special performance at the 2013 MAMA, where a trailer teasing an upcoming reality show and new album was revealed.

Similarly to his previous albums, he will have many collaboration tracks with respected composers including Bae Jin-ryeol.

In the statement, Cube stated that "He [Rain] is known to show enthusiasm for the job by presiding over meetings to provide his fans with the best-quality album possible.

[19] The video is performance-based using 3D designs and light and visual effects to illustrate the choreography done by in both group and solo performance shots.

[26] Rain began promoting the album with an interview and performances of "La Song" and "Marilyn Monroe" on The Cultwo Show on SBS Power FM.

[27] Rain began promoting his comeback album on various music programs, starting on the January 9, 2014, broadcast of Mnet's M Countdown.