Hannah Montana, also known as Hannah Montana Forever in its fourth and final season, is an American teen sitcom created by Michael Poryes, Rich Correll, and Barry O'Brien. It focuses on Miley Stewart (portrayed by Miley Cyrus), a teenage girl living a double life as an average schoolgirl by day and as the famous pop singer Hannah Montana by night, which she keeps secret with only a few people knowing of her alter ego. The story follows the daily life of Stewart, her best friends Lily and Oliver, her brother Jackson, Jackson's arch-enemy Rico and her father Robby (Cyrus' real-life country singer father, Billy Ray Cyrus). The series, produced by It's a Laugh Productions and Michael Poryes Productions, premiered on Disney Channel on March 24, 2006, with the premiere episode garnering 5.4 million views, giving Disney Channel the highest ratings in its history at the time, and concluded on January 16, 2011 after having aired four seasons and ninety-eight episodes. The soundtrack albums Hannah Montana (2006), Hannah Montana 2: Meet Miley Cyrus (2007), Hannah Montana 3 (2009), and Hannah Montana Forever (2010) were released to coincide with their respective seasons. In 2007, the success of the series led to the Best of Both Worlds Tour, which visited North America. The following year, it was adapted into the 3D film Hannah Montana and Miley Cyrus: Best of Both Worlds Concert and its accompanying soundtrack. In 2009, the first feature film of the series, titled Hannah Montana: The Movie was released to commercial success, and was additionally promoted through its accompanying soundtrack. All seasons of the show have been distributed on DVD. The series received generally favorable reviews from critics and was praised by audiences. It has been recognized as a "guilty pleasure" by several media outlets. The show's instant success is widely credited with the launch of the younger Cyrus's career and her establishment as a teen idol. However, as she continued to develop an increasingly provocative image as the series progressed, the series has received criticism for appearing to be a negative influence on its younger audience.