This instrumental is the title song of Finnish symphonic metal band Nightwish's seventh album. Imaginaerum was written alongside a movie of the same name and as the outro track, it was conceived to be played alongside the showing of the film's credits. Nightwish keyboardist Tuomas Holopainen came up with the idea of making a medley of the album's main musical themes, and gave the band's orchestral arranger Pip Williams free rein to make what he wanted of it.
The song "Sadeness" by Enigma (the one with the chanting monks), got its name from the French novelist Marquis de Sade, who believed sex had to be painful in order to be pleasurable - thus the word "sadism."
"Thinking About You" was the ninth track from Calvin Harris' 18 Months album to enter the UK singles Top 10. No other artist has obtained so many hits from one LP - Michael Jackson was the previous record holder with seven Top 10 tunes from both his Bad and Dangerous sets.