Question: Who is the father of the performer of song Instant Pleasure (Song)?

Knowledge 1: Instant Pleasure (song)
The song Instant Pleasure was written by pop songwriter Seth Swirsky and was featured in Adam Sandler's highest-grossing film, "Big Daddy" (1999).In the movie, it was sung by Rufus Wainwright.The song was recorded by Seth Swirsky on his first solo album, Instant Pleasure, in 2004.The album won Best Pop Album at the 2005 L.A. Music Awards.Rockell also recorded the song for her 2002 album, Instant Pleasure.The song has become a cult hit on many college campuses.The Appalachian State College newspaper asked, on October 17, 2006, whether "college students have become more concerned with instant pleasure than a meaningful relationship," citing Swirsky's song.Drew University's student a cappella group, 36 Madison Avenue, did a version of the song at their Jamfest in 2007.Elon University's a cappella group also did a version of the song as did Colby College's a cappella group, Colby Megalomanics. [SEP] Knowledge 2: Rufus Wainwright
Rufus McGarrigle Wainwright (born July 22, 1973) is an American-Canadian singer, songwriter, and composer.He has recorded seven albums of original music and numerous tracks on compilations and film soundtracks.He has also written a classical opera and set Shakespeare sonnets to music for a theater piece by Robert Wilson.Wainwright's self-titled debut album was released through DreamWorks Records in May 1998.His second album, "Poses", was released in June 2001.Wainwright's third and fourth studio albums, "Want One" (2003) and "Want Two" (2004), were repackaged as the double album "Want" in 2005.In 2007, Wainwright released his fifth studio album "Release the Stars" and his first live album "Rufus Does Judy at Carnegie Hall".His second live album "Milwaukee at Last!!!" was released in 2009, followed by the studio albums  (2010) and"Out of the Game" (2012).The double album "Prima Donna" (2015), was a recording of his opera of the same name.His ninth studio album  (2016), featured nine adaptions of Shakespeare's sonnets.Wainwright is the son of musicians Loudon Wainwright III and Kate McGarrigle, and the older brother of singer Martha Wainwright.
Knowledge 1: Rufus Wainwright
Rufus McGarrigle Wainwright (born July 22, 1973) is an American-Canadian singer, songwriter, and composer.He has recorded seven albums of original music and numerous tracks on compilations and film soundtracks.He has also written a classical opera and set Shakespeare sonnets to music for a theater piece by Robert Wilson.Wainwright's self-titled debut album was released through DreamWorks Records in May 1998.His second album, "Poses", was released in June 2001.Wainwright's third and fourth studio albums, "Want One" (2003) and "Want Two" (2004), were repackaged as the double album "Want" in 2005.In 2007, Wainwright released his fifth studio album "Release the Stars" and his first live album "Rufus Does Judy at Carnegie Hall".His second live album "Milwaukee at Last!!!" was released in 2009, followed by the studio albums  (2010) and"Out of the Game" (2012).The double album "Prima Donna" (2015), was a recording of his opera of the same name.His ninth studio album  (2016), featured nine adaptions of Shakespeare's sonnets.Wainwright is the son of musicians Loudon Wainwright III and Kate McGarrigle, and the older brother of singer Martha Wainwright. [SEP] Knowledge 2: Caspar Babypants
Caspar Babypants is the stage name of children's music artist Chris Ballew, who is also widely known as the singer of The Presidents of the United States of America.
Knowledge 1: Cleomenes II
Cleomenes II( died 309 BC) was Agiad King of Sparta from 369 to 309 BC.The son of Cleombrotus I, he succeeded his brother Agesipolis II.He was the father of Acrotatus I, the father of Areus I, and of Cleonymus, the father of Leonidas II. [SEP] Knowledge 2: Lars Eliasson
He is the father of the later Member of Parliament Anna Eliasson.

Answer: Loudon Wainwright III