Bluegrass refers to several species of grasses of the genus Poa (with the most famous being the Kentucky bluegrass)

The term has also been applied to various things that relate to the region in which the grass grows:

Sleepy Man Banjo Boys is a bluegrass music trio from Lebanon Township, New Jersey, United States. It is composed of the Mizzone brothers: Jonny (age 10, banjo), Robbie (12, fiddle) and Tommy (14, guitar). The trio has appeared on the David Letterman show and twice on Huckabee. They have played at several bluegrass festivals, including one with J. D. Crowe and the New South, and benefits. A YouTube video of Jonny Mizzone and his brothers practicing Earl Scruggs's Flint Hill Special has been viewed more than 2 million times. The Sleepy Man Banjo Boys made their Grand Ole Opry debut on August 20, 2011. The group's first CD, America's Music, was released in September 2011.

Sweet Baby (originally known as Sweet Baby Jesus) was a pop punk band that originated from Berkeley, California, and was part of the 924 Gilman Street scene. They were signed to Ruby Records.

Formed in 1986 by singer Dallas Denery and singer/guitarist Matt Buenrostro with Crispy Jim (later of The Saddlebacks) on bass and Dr. Frank (the frontman of The Mr. T Experience) on drums. Frank and Crispy Jim did not appear on any Sweet Baby recordings, having been already replaced by Sergie Loobkoff (Samiam, Knapsack) and Richie Bucher (Jüke, Wynona Ryders), respectively. Aaron Elliott aka Aaron Cometbus also played drums for them on their 1989 US tour. They had two songs on the Maximum Rock and Roll compilation Turn it Around (1988), "She's from Salinas" and "Pathetic." In 1989, they released their only lp, It's A Girl on Ruby Records (a Slash/Warner subsidiary). Lookout Records re-released it in 1995.'

In January 2005, their song, "Baby Baby Baby Baby Baby Baby Baby, I Love You" was featured on Bravo in an advertisement for the show Queer Eye for the Straight Girl.

William Smith Monroe (September 13, 1911 – September 9, 1996) was an American musician who created the style of music known as bluegrass, which takes its name from his band, the "Blue Grass Boys," named for Monroe's home state of Kentucky. Monroe's performing career spanned 60 years as a singer, instrumentalist, composer and bandleader. He is often referred to as The Father of Bluegrass.

Monroe was born on his family's farm near Rosine, Kentucky, the youngest of eight children of James Buchanan "Buck" and Malissa (Vandiver) Monroe. His mother and her brother, Pendleton "Pen" Vandiver, were both musically talented, and Monroe and his family grew up playing and singing at home. Bill was of Scottish heritage. Because his older brothers Birch and Charlie already played the fiddle and guitar, Bill Monroe was resigned to playing the less desirable mandolin. He recalled that his brothers insisted he remove four of the mandolin's eight strings so he would not play too loudly.

Monroe's mother died when he was ten, followed by his father six years later. As his brothers and sisters had moved away, after bouncing among uncles and aunts, Monroe settled in with his disabled uncle Pendleton Vandiver, often accompanying him when Vandiver played the fiddle at dances. This experience inspired one of Monroe's most famous compositions, "Uncle Pen," recorded in 1950, and the 1972 album, "Bill Monroe's Uncle Pen." On that album, Monroe recorded a number of traditional fiddle tunes he had often heard performed by Vandiver. Uncle Pen has been credited with giving Monroe "a repertoire of tunes that sank into Bill's aurally trained memory and a sense of rhythm that seeped into his bones." Also significant in Monroe's musical life was Arnold Shultz, an influential fiddler and guitarist who introduced Monroe to the blues.

Earl Eugene Scruggs (January 6, 1924 – March 28, 2012) was an American musician noted for perfecting and popularizing a three-finger banjo-picking style (now called "Scruggs style") that is a defining characteristic of bluegrass music. Although other musicians had played in three-finger style before him, Scruggs shot to prominence when he was hired by Bill Monroe to fill the banjo slot in his group, the Blue Grass Boys.

Scruggs was born near Shelby, Cleveland County, North Carolina, to Georgia Lula Ruppe and George Elam Scruggs, a farmer and bookkeeper, who played banjo and died when Scruggs was four years old. His older brothers, Junie and Horace, plus his two older sisters, Eula Mae and Ruby, all played banjo and guitar. Scruggs' mother played the organ. He grew up in Cleveland County, North Carolina.

Scruggs joined Bill Monroe's Blue Grass Boys in late 1945, and quickly popularized his syncopated, three-finger picking style. In 1948 Scruggs and guitarist Lester Flatt left Monroe's band and formed the Foggy Mountain Boys, also later known simply as Flatt and Scruggs. In 1969, they broke up, and he started a new band, the Earl Scruggs Revue, featuring several of his sons.