Question: Power Balladz, is a live comedy performance featuring a mixture of comedy, trivia, and iconic rock n' roll songs from the 70s, 80s & 90s, the comedy's musical blend includes songs by Heart, a rock band that first found success in Canada and later in the United States and worldwide, are of which nationality ?

Context paragraphs:
Norm N. Nite: Norm N. Nite (born Norman Durma, January 25, 1941), is the author of the "Rock On: The Illustrated Encyclopedia of Rock N' Roll" book series.  Nite began his career as a DJ at WGAR (AM) in Cleveland and later at WMJI there.  Later he would host shows at WCBS-FM and WNBC in New York City.  His historical interest in Rock & Roll led him to compile, as the first volume of "Rock On" describes it, "an exhaustive array of data on more than 1,000 of the most popular artists of the fifties and early sixties.  Any singer who had a top 100 single during the golden days of rock n' roll can be found in (the) book."  Subsequently, due to the popularity of this volume, first released in 1974, he authored a second volume in 1978, covering, as described on the dust jacket, "The Modern Years: 1964-Present" with an introduction by Wolfman Jack.  In 1985 Rock On Volume 3 was released and billed "Rock On Volume 3 – The Video Revolution: 1978 – Present".  During 1988 he narrated the radio program, Solid Gold Scrapbook.

A to B (EP): A to B is a 4-track EP by American pop-rock singer-songwriter Matt Hires, released on August 17, 2010.  The Ep includes the original album version of "Honey Let Me Sing You a Song" – first found on the Tampa-based tunesmith's acclaimed 2009 debut, "Take Us to the Start", it also features 2 new songs "A To B", "Rock N' Roll Heart" and a new recording of "Honey, Let Me Sing You a Song (Alternate Version)".  The EP was released exclusively through digital service.

This Is What Rock n' Roll Looks Like: "This Is What Rock n' Roll Looks Like" is the debut single of American industrial singer-songwriter Porcelain Black, featuring American rapper Lil Wayne.  This song serves as the lead single from the singer's debut studio album, "Mannequin Factory".  Produced by Moroccan-Swedish producer RedOne, who had originally discovered Black, "This Is What Rock n' Roll Looks Like" is influenced by the genre of rock, lyrically stating how the listener should be proud of who they are.  The song was released digitally in the United States on March 29, 2011, and managed to chart at number forty-four on the US "Billboard" Hot Dance Club Songs.

Joan Baez: Joan Chandos Baez ( ; born January 9, 1941) is an American folk singer, songwriter, musician, and activist whose contemporary folk music often includes songs of protest or social justice, Baez has performed publicly for over 59 years, releasing over 30 albums.  Fluent in Spanish and English, she has recorded songs in at least six other languages.  She is regarded as a folk singer, although her music has diversified since the counterculture days of the 1960s and now encompasses everything from folk rock and pop to country and gospel music.  Although a songwriter herself, Baez generally interprets other composers' work, having recorded songs by the Allman Brothers Band, the Beatles, Jackson Browne, Leonard Cohen, Woody Guthrie, Violeta Parra, The Rolling Stones, Pete Seeger, Paul Simon, Stevie Wonder, Bob Dylan and many others.  In recent years, she has found success interpreting songs of modern songwriters such as Ryan Adams, Josh Ritter, Steve Earle and Natalie Merchant.  Her recordings include many topical songs and material dealing with social issues.

Hurriganes: Hurriganes is a Finnish rock band that was formed in the early 1970s.  They were very popular in Finland & Estonia in the 1970s and early 1980s, as well as a popular live act in Sweden during this time.  Their classic line-up consisted of Remu Aaltonen, Albert Järvinen, and Cisse Häkkinen.  The misspelling of the name ("Hurriganes" with a "g") is intentional.  Their style of music is very much of a nostalgic, pre-Beatles, roots rock'n'roll orientation.  During their "classic" period, the band's output consisted largely of revved-up cover versions of well-known 1950s rock 'n' roll songs, in addition to their own original material.  In this sense, Hurriganes can be viewed as Finland's answer to British pub rock performers of the 1970s like Dave Edmunds and Dr. Feelgood.

List of Heart band members: Heart is an American rock band that first found success in Canada and later in the United States and worldwide.  Over the group's four-decade history it has had three primary lineups, with the constant center of the group since 1974 being sisters Ann Wilson (lead singer) and Nancy Wilson (guitarist).  While it has been referred to as a duo because of the focus on leaders Ann and Nancy Wilson, Heart is a full rock group.  In its original lineup the band had six members, then five in its second incarnation, and is again at six currently.

Rock n' Roll Nights: Rock n' Roll Nights is the eighth studio album by Canadian rock band BTO, released in 1979.  This album was one of three BTO albums that did not feature co-founder Randy Bachman.  "Rock n' Roll Nights" is also one of the two albums from this band to feature Jim Clench, formerly of April Wine.  This album generated sales of only about 350,000 copies, though a single from the album called "Heartaches" managed to reach #60 on the U.S. charts and cracked the Top 40 in Canada.  "Rock n' Roll Nights" is a rare find on CD, as it was released only for a short time on that format in 1990.

Rock and Roll Camp for Girls: The Rock 'n' Roll Camp for Girls is both the original Rock n Roll Camp for Girls non-profit organization based in Portland, Oregon, United States, and the common name associated with the Girls Rock Camp movement of youth organizations for girls inspired by the original camp in Portland.  The camp in Portland gives girls ages 8–18 the opportunity to learn rock instruments, form bands, write songs, and perform.  The mostly volunteer and female staff strives to inspire self-esteem and mutual support among diverse campers within this rock band framework.  The first camp was held in August 2001.

Heart (band): Heart is an American rock band that first found success in Canada and later in the United States and worldwide.  Over the group's four-decade history, it has had three primary lineups, with the constant center of the group since 1973 being sisters Ann Wilson (lead singer) and Nancy Wilson (guitarist).  Heart rose to fame in the mid-1970s with music influenced by hard rock and heavy metal, as well as folk music.  Their popularity declined in the early 1980s, but the band enjoyed a comeback starting in 1985 and experienced even greater success with album-oriented rock hits and hard-rock ballads into the 1990s.

Power Balladz: Power Balladz is a live comedy performance featuring a mixture of comedy, trivia, and iconic rock n' roll songs from the 70s, 80s & 90s for which it is also named.  Created by Mike Todaro and Dan Nycklemoe with Peter Rothstein, Power Balladz began its initial theatrical run at the LAB Theatre in Minneapolis and then made its New York debut on August 5, 2010 with an opening night of August 19, 2010.  The comedy's musical blend includes songs by Journey, Queen, Scorpions, Poison, Aerosmith, Bon Jovi, Night Ranger, Styx, Heart, and more.

Supporting paragraphs: Power Balladz Heart (band)
Answer: American