"Blue moon. You saw me standing alone. Without a dream in my heart. Without a love of my own."
So sang Elvis Presley (see the video). The song was actually written by the great songwriting duo Rogers and Hart in 1934. It's been covered by many, but no one has been able to croon it as well as Elvis.
Grab your special someone and look up this Friday night for a real blue moon sighting. You could even put on that old Elvis 45 and crack open a Blue Moon beer—don't forget the orange.
But don't expect to see the color blue. A blue moon refers to the rarity of multiple full moons in a month or season. That's where the saying, once in a blue moon comes from.
Friday's full moon will be the second in August. The first took place on Aug. 1.
Two blue moons in a month typically occur every 2.7 years, according to the Huffington Post.
The last blue moon was on Dec. 31, 2009.
Best time to see the Blue Moon:
The moon will be at its fullest at 8:58 a.m. CST, according to the Farmers' Almanac.