Given the task definition and input, reply with output. In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Puddle of Mudd is an American rock band formed in 1991. To date, the band has sold over seven million albums and has had a string of No. 1 mainstream rock singles in the United States. Their major-label debut "Come Clean" has sold over five million copies. They have released two independent and four major albums, with their latest being "" in December 2009, and their most recent compilation album being "", released in August 2011. Question: Are Glasvegas and Puddle of Mudd both rock bands? Answer: yes
Puddle of Mudd is an American rock band formed in 1991.