Blue Sky – Night Thunder is the fourth album by American singer-songwriter Michael Murphey and is considered one of the seminal albums of his career. Released in 1975, it produced two major hit singles—the platinum-certified "Wildfire" and "Carolina in the Pines"—and established him as a major force in popular music. Members of the Nitty Gritty Dirt Band provided backing on some of the tracks.
The album was Murphey's most successful and reached #18 on the Billboard album chart, eventually selling 800,000 US copies. It remains his most commercially successful album to date.