Peter, Paul and Mary in the context of "John Jacob Niles"

Contemporary folk music refers to a wide variety of genres that emerged in the mid-20th century and afterwards which were associated with traditional folk music. Starting in the mid-20th century, a new form of popular folk music evolved from traditional folk music. This process and period is called the (second) folk revival and reached a zenith in the 1960s. The most common name for this new form of music is also "folk music", but is often called "contemporary folk music" or "folk revival music" to make the distinction. The transition was somewhat centered in the United States and is also called the American folk music revival. Fusion genres such as folk rock and others also evolved within this phenomenon. While contemporary folk music is a genre generally distinct from traditional folk music, it often shares the same English name, performers and venues as traditional folk music; even individual songs may be a blend of the two.

While the Romantic nationalism of the first folk revival had its greatest influence on art music, the "second folk revival" of the later 20th century brought a new genre of popular music with artists marketed through concerts, recordings and broadcasting. One of the earliest figures in this revival was Woody Guthrie, who sang traditional songs in the 1930s and 1940s as well as composing his own. Other major performers who emerged from the 1940s to the early 1960s included Pete Seeger, Bob Dylan, Joan Baez, Peter, Paul and Mary, Phil Ochs and Tom Paxton. In the UK, the folk revival fostered a generation of musicians such as Fairport Convention, Richard Thompson, Donovan, Martin Carthy, and Pentangle, who achieved initial prominence in the 1960s. The folk revival spawned Canada's first folk wave of internationally successful artists such as Neil Young, Gordon Lightfoot, Leonard Cohen, Joni Mitchell, and Buffy Sainte-Marie.

The American folk music revival began during the 1940s and peaked in popularity in the mid-1960s. Early folk music performers include Woody Guthrie, Lead Belly, Pete Seeger, Richard Dyer-Bennet, Oscar Brand, Jean Ritchie, John Jacob Niles, Susan Reed, Mississippi John Hurt, Josh White, and Cisco Houston. Lead Belly recorded "Cotton Fields" and "Goodnight, Irene" and folk singer Odetta released folk albums.

New folk musicians such as Bob Dylan, Joan Baez, Judy Collins, Joni Mitchell, Phil Ochs, Peter Paul & Mary and many others recorded folk songs and new compositions in the folk style in the 1960s and 1970s. The revival also brought forward strains of American folk music that had in earlier times contributed to the development of country and western, bluegrass, blues, and rock and roll music.

Peter Seeger (May 3, 1919 – January 27, 2014) was an American singer, songwriter, musician, and left-wing social activist. He was a fixture on nationwide radio in the 1940s and had a string of hit records in the early 1950s as a member of The Weavers, notably their recording of Lead Belly's "Goodnight, Irene", which topped the charts for 13 weeks in 1950. Members of the Weavers were blacklisted during the McCarthy Era. In the 1960s, Seeger re-emerged on the public scene as a prominent singer of protest music in support of international disarmament, civil rights, workers' rights, counterculture, environmental causes, and ending the Vietnam War.

Among the prolific songwriter's best-known songs are "Where Have All the Flowers Gone?" (with additional lyrics by Joe Hickerson), "If I Had a Hammer (The Hammer Song)" (with Lee Hays of the Weavers), "Kisses Sweeter than Wine" (also with Hays), and "Turn! Turn! Turn! (To Everything There Is a Season)", which has been recorded by many artists both in and outside the folk revival movement. "Flowers" was a hit recording for The Kingston Trio (1962); Marlene Dietrich, who recorded it in English, German and French (1962); and Johnny Rivers (1965). "If I Had a Hammer" was a hit for Peter, Paul and Mary (1962) and Trini Lopez (1963) while The Byrds had a number one hit with "Turn! Turn! Turn!" in 1965.

Thomas Richard Paxton (born October 31, 1937) is an American folk singer-songwriter whose career spans more than sixty years. In 2009, Paxton received a Grammy Lifetime Achievement Award. He is a music educator as well as an advocate for folk singers to combine traditional songs with new compositions.

Paxton's songs have been widely recorded, including modern standards such as "The Last Thing on My Mind", "Bottle of Wine", "Whose Garden Was This", "The Marvelous Toy", and "Ramblin' Boy". Paxton's songs have been recorded by Pete Seeger, Bob Dylan, the Weavers, Judy Collins, Sandy Denny, Joan Baez, Doc Watson, Harry Belafonte, Peter, Paul and Mary, the Seekers, Marianne Faithfull, the Kingston Trio, the Chad Mitchell Trio, John Denver, Dolly Parton and Porter Wagoner, Johnny Cash, Willie Nelson, Flatt & Scruggs, the Move, the Fireballs, Francesco Guccini and many others (see covers).