Peter Paul Cetera (born September 13, 1944 in Chicago, Illinois, USA) is an American singer, songwriter, bass guitar player and producer best known for being an original member of the rock band Chicago, before launching a successful solo career.

In 1981, Cetera released his first solo album on Warner Bros. Records. The album was, a commercial failure, which Cetera has attributed to Warner Bros.' refusal to promote him as a solo artist out of fear that he would leave Chicago, who had only recently signed with the label.

In 1985, Cetera was interested in recording another solo album. He had stated his lack of interest for the extensive touring schedule of the band. When the 17 Tour concluded in late-April 1985, Chicago's management, along with several members of the band, had expressed a desire to book another tour for that summer and start work on the next Chicago album. Cetera insisted that they take a break from touring so that he could concentrate on a solo album and spend more time with his family. After the band rejected his offer to stay in the band while recording a solo album, it was announced that Cetera and Chicago would go their separate ways in July 1985.

Almost immediately, Cetera continued his streak of success. His first single, "Glory of Love" (the theme to the movie The Karate Kid, Part II), was a US No. 1 hit in 1986, and achieved similar success throughout the world.

He has many hits, such as:
1982 - "Livin' In The Limelight" #6 (Mainstream Rock) US
1986 - "Glory of Love" #1 US, #1 (Adult Contemporary) US, #3 UK (also appears on the soundtrack to The Karate Kid, Part II)
1986 - "The Next Time I Fall" (with Amy Grant) #1 US, #1 (Adult Contemporary) US, #78 UK
1987 - "Only Love Knows Why" #24 (Adult Contemporary) US
1987 - "I Wasn't the One (Who Said Goodbye)" (with Agnetha Fältskog) #93 US, #19 (Adult Contemporary) US
1988 - "One Good Woman" #4 US, #1 (Adult Contemporary) US, #82 UK
1992 - "Restless Heart" #35 US, #1 (Adult Contemporary) US
1993 - "Even A Fool Can See" #68 US, #3 (Adult Contemporary) US
1995 - "(I Wanna Take) Forever Tonight" (with Crystal Bernard) #86 US, #22 (Adult Contemporary) US
1997 - "Do You Love Me That Much" #6 (Adult Contemporary) US