Try the "search for questions" box at the top of the screen. It would have given you the answer immediately, and saved you from the obnoxious spam answer that you received prior to this one. (Edit: Hooray, it looks like someone at Yahoo is awake and pulled the spam answer down.)
Yes it's an actual song. "Let Your Love Flow" from the Bellamy Brothers, originally recorded about 35 years ago. Yup. 35 years.
bellamybrothers.com