Question: My Tutor actor Matt Lattanzi was once married to what famous singer and actor?

full_context: Document 1: Matthew Leone: Matthew Jon Leone ( ) is the bassist of rock band Madina Lake. He was born on May 31, 1975. Matthew is three minutes older than his identical twin Nathan Leone, who is the lead vocalist in Madina Lake.
Document 2: Class (film): Class is a 1983 American comedy film directed by Lewis John Carlino, starring Rob Lowe, Jacqueline Bisset and Cliff Robertson. It marked the film debut of Andrew McCarthy, John Cusack and Virginia Madsen.
Document 3: Matthew Morrison: Matthew James "Matt" Morrison (born October 30, 1978) is an American actor, dancer, and singer-songwriter. Morrison is known for starring in multiple Broadway and Off-Broadway productions, including his portrayal of Link Larkin in "Hairspray" on Broadway, and for his role as Will Schuester on the Fox television show "Glee" (2009–2015). Morrison is signed with Adam Levine's 222 Records. Morrison received a Tony Award nomination for his featured role as Fabrizio Nacarelli in the musical "The Light in the Piazza." From March 2015 to January 2016, Morrison starred in the lead role of J.M. Barrie in the Broadway production of "Finding Neverland".
Document 4: My Tutor: My Tutor is a 1983 American sex comedy film directed by George Bowers. The film focuses on high school graduates (including Matt Lattanzi and Crispin Glover) as they attempt to lose their virginity during the summer vacation before college, and one's eventual relationship with his French tutor (Caren Kaye).
Document 5: Matt Lucena: Matt Lucena (born August 4, 1969) is a former professional tennis player from the United States. He won the mixed doubles title at the 1995 US Open.
Document 6: Chloe Rose Lattanzi: Chloe Rose Lattanzi (born January 17, 1986) is an American singer and actress who was born in Los Angeles to actress and singer Olivia Newton-John and actor Matt Lattanzi. Her maternal great-grandfather is Nobel prize-winning physicist Max Born.
Document 7: Private School (film): Private School (also titled Private School ... for Girls) is a 1983 American teen sex comedy film, directed by Noel Black. Starring Phoebe Cates, Betsy Russell, and Matthew Modine, it follows a teenaged couple attempting to have sex for the first time.
Document 8: My Teacher's Wife: My Teacher's Wife is an 1995 teen sex comedy film directed by Bruce Leddy, and written by Seth Greenland. Originally titled "Bad With Numbers," the story follows the travails of Southport High School senior Todd Boomer (Jason London) whose lifelong dream of going to Harvard is derailed by his hard-nosed calculus teacher Mr. Mueller (Christopher McDonald). When Todd enlists the tutoring help of the sexy and mysterious Vicki (Tia Carrere), things go from bad to worse.
Document 9: Matt Lattanzi: Matthew Vincent "Matt" Lattanzi (born February 1, 1959) is an American actor and dancer. He is most commonly recognized as the first husband of singer and actor Olivia Newton-John, and for his acting in films such as "My Tutor" and the soap opera "Paradise Beach".
Document 10: Matt Battaglia: Matteo Martin "Matt" Battaglia (born September 25, 1965) is an Emmy winning producer, American actor and former American football player.
Document 11: Bad Teacher: Bad Teacher is a 2011 American comedy film directed by Jake Kasdan based on a screenplay by Lee Eisenberg and Gene Stupnitsky, and starring Cameron Diaz, Justin Timberlake, Lucy Punch, Jason Segel, and Phyllis Smith.
Document 12: G.B.F. (film): G.B.F. (Gay Best Friend) is a 2013 American teen comedy film directed by Darren Stein and produced by School Pictures, Parting Shots Media, and Logolite Entertainment. The film made its first official screening at the 2013 Tribeca Film Festival in April 2013 and got its theatrical release on January 17, 2014 by Vertical Entertainment. "G.B.F." focuses on closeted gay high school students Tanner and Brent. When Tanner is outed, he is picked up by the cool girls and he begins to surpass still-closeted Brent in popularity.
Document 13: John Farrar: John Clifford Farrar ( ; born 8 November 1945) is an Australian-born music producer, songwriter, arranger, singer and guitarist. As a musician, Farrar is a former member of several rock and roll groups including The Mustangs (1963–64), The Strangers (1964–70), Marvin, Welch & Farrar (1970–73), and The Shadows (1973–76); in 1980 he released a solo eponymous album. As a songwriter and producer he worked with Olivia Newton-John from 1971 to 1989. He wrote her number-one hit singles: "Have You Never Been Mellow" (1975), "You're the One That I Want" (1978 duet with John Travolta), "Hopelessly Devoted to You" (1978), and "Magic" (1980). He also produced the majority of her recorded material during that time including her number-one albums, "If You Love Me, Let Me Know" (1974), "Have You Never Been Mellow" (1975) and "Olivia's Greatest Hits Vol. 2" (1982); and he was a co-producer of "" (1978) – the soundtrack for the film of the same name. Farrar also produced Newton-John's first United States number-one hit single, "I Honestly Love You", which was awarded the Grammy Award for Record of the Year in 1975. In 1969 Farrar married fellow Australian singer, Pat Carroll – formerly Newton-John's singing partner. In July 1970 Farrar and Carroll relocated to the United Kingdom and from late 1975 they have resided in the US. They are the parents of Sam Farrar (Phantom Planet bassist and Maroon 5 touring member) and Max Farrar (Golden Ghost guitarist and keyboardist).
Document 14: Sex Drive (film): Sex Drive is a 2008 sex comedy film about a high school graduate who goes on a road trip to have sex with a girl he met online. It is based on the young adult novel "All the Way" by American author Andy Behrens. The film was directed by Sean Anders, and stars Josh Zuckerman, Amanda Crew, Clark Duke, Seth Green, and James Marsden, while Katrina Bowden, Alice Greczyn, Michael Cudlitz, Dave Sheridan, and David Koechner appear in supporting roles. It was released in North America on October 17, 2008, and in the United Kingdom on January 9, 2009.
Document 15: American Pie (film): American Pie is a 1999 teen sex comedy film written by Adam Herz and directed by brothers Paul and Chris Weitz, in their directorial film debut. It is the first film in the "American Pie" theatrical series. The film was a box-office hit and spawned three direct sequels: "American Pie 2" (2001), "American Wedding" (2003), and "American Reunion" (2012). The film concentrates on five best friends (Jim, Kevin, Oz, Finch, and Stifler) who attend East Great Falls High. With the exception of Stifler (who has already lost his virginity), the guys make a pact to lose their virginity before their high school graduation. The title is borrowed from the song of the same name and refers to a scene in the film, in which the protagonist is caught masturbating with a pie after being told that third base feels like "warm apple pie". Writer Adam Herz has stated that the title also refers to the quest of losing one's virginity in high school, which is as "American as apple pie."
ground_truth: Olivia Newton-John