"Sora ga Natteiru" , also known by its English name "The Reverberation", is one of the A-sides of the single "Sora ga Natteiru/Onna no Ko wa Dare Demo" by Japanese rock band Tokyo Jihen, led by musician Ringo Sheena. The song was the band's fourth to be used in a commercial campaign for Ezaki Glico's Watering Kissmint brand of gum. It was released digitally in February 2011, and eventually physically on May 11, 2011, after the three-month postponement of the physical edition.

"Onna no Ko wa Dare Demo" , also known by its English name "Fly Me to Heaven", is one of the A-sides of the single "Sora ga Natteiru/Onna no Ko wa Dare Demo" by Japanese rock band Tokyo Jihen, led by musician Ringo Sheena. It was released digitally in April 2011, and physically on May 11, 2011, after being postponed since February. The song was featured in a national campaign for Shiseido's Maquillage range of cosmetics in 2011, which featured Sheena as the spokesperson.