Songs by Tupac Shakur, Willie Nelson, R.E.M. and the 1959 original cast album of "Gypsy" are among the 25 eclectic recordings inducted Wednesday into the Library of Congress' National Recording Registry.

Under the terms of 2000's National Recording Preservation Act, the criteria for preservation by the Library of Congress are that the work be "culturally, historically or aesthetically significant" and be at least 10 years old. Nominations were gathered from online submissions from the public and from members of the National Recording Preservation Board.

In its citation for Shakur's "Dear Mama," the NRPB called the song a "... moving and eloquent homage to both his own mother and all mothers struggling to maintain a family in the face of addiction, poverty and societal indifference, Tupac Shakur unflinchingly forgives his mother who, despite a cocaine habit, "never kept a secret, always stayed real." The song displays further evidence of hip hop as a musically sophisticated and varied genre that can artfully encompass a wide variety of themes and musical influences."

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