Sir Michael Philip Jagger (born 26 July 1943) is an English musician, songwriter, and film producer known as the lead singer and founder member of the Rolling Stones. Jagger has co-written most of the Stones' songs with lead guitarist Keith Richards; their songwriting partnership is one of the most successful in rock music history. His career has spanned more than six decades, and he has been widely described as one of the most popular and influential front men in the history of rock music. His distinctive voice and energetic live performances, along with Richards's guitar style, have been the Rolling Stones' trademark throughout the band's career. Early in his career, Jagger gained notoriety for his romantic involvements and illicit drug use, and has often been portrayed as a countercultural figure. Jagger was born and grew up in Dartford. He studied at the London School of Economics before abandoning his studies to focus on his career with the Rolling Stones. In the early 1970s, Jagger starred in the films Performance (1970) and Ned Kelly (1970), to mixed receptions. Beginning in the 1980s, he released a number of solo works, including four albums and the single "Dancing in the Street", a 1985 duet with David Bowie that reached No. 1 in the UK and Australia and was a top-ten hit in other countries. In the 2000s, Jagger co-founded a film production company, Jagged Films, and produced feature films through the company beginning with the 2001 historical drama Enigma. He was also a member of the supergroup SuperHeavy from 2009 to 2011. Although relationships with his bandmates, particularly Richards, deteriorated during the 1980s, Jagger has always found more success with the Rolling Stones than with his solo and side projects. He was married to Bianca Pérez-Mora Macias from 1971 to 1978, and has had several other relationships; he has eight children with five women. In 1989, Jagger was inducted into the Rock and Roll Hall of Fame as a member of the Rolling Stones and, in 2004, into the UK Music Hall of Fame. As a Stones member and as a solo artist, he reached No. 1 on the UK and US singles charts with 13 singles, the top 10 with 32 singles and the top 40 with 70 singles. In 2003, he was knighted for his services to popular music. Jagger is credited with being a trailblazer in pop music and with bringing a style and sex appeal to rock and roll that have been imitated and proven influential with subsequent generations of musicians and entertainers.