Given the question: Information: - Indica is a Finnish pop rock group founded in 2001 . Jani Jalonen of Sony Music became interested in the group , and a recording contract was signed 2003 . Indica 's first album , Ikuinen virta was released in 2004 . It has since sold platinum in Finland . Indica supported Nightwish during their Scandinavian tour 2007 in which they performed English versions of their songs . Tuomas Holopainen of Nightwish produced their next album , Valoissa , while many of the songs employed the orchestral talents of Pip Williams and the literary talents of their lyrics collaborator Rory Winston . The band was also added to the line - up for Nightwish 's 2nd half of the Dark Passion Play Tour with Pain . - Ikuinen virta is the first album by Finnish pop rock band Indica, released in 2004. It spent a total of 29 weeks in the Finnish Top 40, peaking at number 4 in January 2005. - Rock music is a genre of popular music that originated as "rock and roll" in the United States in the 1950s, and developed into a range of different styles in the 1960s and later, particularly in the United Kingdom and the United States. It has its roots in 1940s' and 1950s' rock and roll, itself heavily influenced by blues, rhythm and blues and country music. Rock music also drew strongly on a number of other genres such as electric blues and folk, and incorporated influences from jazz, classical and other musical sources. - Pop rock is rock music with a lighter, smoother approach that is more reminiscent of commercial pop music. Originating in the 1950s as an alternative to rock and roll, early pop rock was influenced by the beat, arrangements, and style of rock and roll (and sometimes doo wop), but placed a greater emphasis on professional songwriting and recording craft. The detractors of pop rock often deride it as a slick, commercial product, less authentic than rock music. - Rock and roll (often written as rock & roll or rock 'n' roll) is a genre of popular music that originated and evolved in the United States during the late 1940s and early 1950s, from African-American musical styles such as gospel, jazz, boogie woogie, and rhythm and blues, with country. While elements of rock and roll can be heard in blues records from the 1920s and in country records of the 1930s, the genre did not acquire its name until the 1950s. - Pop music is a genre of popular music that originated in its modern form in the Western world as a softer alternative to rock and roll. The terms "popular music" and "pop music" are often used interchangeably, although the former describes all music that is popular and includes many styles. "Pop" and "rock" were synonymous terms until the late 1960s, when they were increasingly used in opposition from each other. Given the paragraphs above, decide what entity has the relation 'instance of' with 'rock band'.
The answer is:
indica