Trouble (Natalia Kills song)

"Trouble" is a song recorded by English singer and songwriter Natalia Kills for her second studio album of the same name (2013), appearing on it as its closing track. The song's lyrics were written about bad behavior and trouble, while musically, "Trouble" is a midtempo '90s-esque pop rock number that emulates arena rock. The overall sound of the song was praised by contemporary music critics, who also highlighted its placement on the album track listing.

The song has been performed by Kills in some live events. Despite not having been released as a single, director Emile Rafael filmed a video for "Trouble", that explores Kills and her on-screen boyfriend's use of recreational drugs and their relationship; it was released in February 2014. Martin Kierszenbaum produced a remix of "Trouble" which features electronic musician Peaches.