Question:  The Blurred Lines Tour was by which American singer and record producer?

Context paragraphs:
Blurred Lines: "Blurred Lines" is a single written and performed by American recording artists Robin Thicke, T.I., and Pharrell Williams.  Produced by Pharrell, it serves as the lead single from Thicke's album of the same name.  It was released on March 26, 2013 through Pharrell's label Star Trak Recordings.  Recorded in 2012, the song's percussion ideas were primarily inspired by the Marvin Gaye song "Got to Give It Up", and apart from T.I.'s rap, was entirely the work of Williams.  However, Thicke clearly laid claim to writing credits on the track according to a Reuters article.  The song became the subject of a bitter legal dispute with the family of Gaye and Bridgeport Music as to whether the song infringed copyrights to "Got to Give It Up".  Thicke and Williams were found liable for copyright infringement by a federal jury in March 2015, and Gaye was awarded posthumous songwriting credit based on the royalties pledged to his estate.

Blurred Lines Tour: The Blurred Lines Tour is the debut headlining tour by American recording artist, Robin Thicke.  The tour supports of his sixth studio album, "Blurred Lines" (2013).  The tour traveled to North America and Europe, playing over 30 concerts.

Emily Ratajkowski: Emily O'Hara Ratajkowski ( ; born June 7, 1991) is an American model and actress.  Born to American parents in London and raised primarily in California, she rose to prominence in 2013 after appearing in the music video for Robin Thicke's "Blurred Lines", which became the number one song of the year in several countries and attracted controversy over its purportedly sexist content.

Give It 2 U: "Give It 2 U" is a song by American recording artist Robin Thicke, featuring a guest appearance from American rapper Kendrick Lamar.  The song was serviced to mainstream radio on August 27, 2013 as the third single from Thicke's sixth studio album "Blurred Lines" (2013).  The song was written by Thicke and Lamar alongside will.i.am, and produced by Dr. Luke and Cirkut.  It peaked at number 25 on the Billboard Hot 100 and 41 on the ARIA chart in Australia.

Blurred Lines (album): Blurred Lines is the sixth studio album by American recording artist Robin Thicke.  It was first released in Germany on July 12, 2013, and released in the United States on July 30, 2013, by Star Trak Entertainment and Interscope Records.  The album features guest appearances from T.I., Pharrell, Kendrick Lamar and 2 Chainz.  will.i.am also features as a guest writer on the track "Give It 2 U" and also serves as a producer on the tracks "Feel Good" and "Go Stupid 4 U".

Robin Thicke: Robin Charles Thicke (born March 10, 1977) is an American singer, songwriter and record producer.

Word Crimes: "Word Crimes" is a song by American musician "Weird Al" Yankovic from his fourteenth studio album, "Mandatory Fun" (2014).  The song is a parody of the 2013 single "Blurred Lines" by Robin Thicke, featuring Pharrell Williams and T.I..  The song spoofs misuse of proper English grammar and usage, reflecting Yankovic's own rigor for proper syntax and semantics.  Yankovic chose a topic that would be distinct from those used in many pre-existing parodies, and that would avoid the misogyny issues that had arisen from the source material.

For the Rest of My Life: "For the Rest of My Life" (also known as "4 the Rest of My Life") is a song by American R&B singer Robin Thicke from his sixth studio album "Blurred Lines" (2013).  Written and produced by Thicke and ProJay, the song was serviced to urban adult contemporary radio as the second single from "Blurred Lines" on May 21, 2013.

Elle Evans: Elle Evans (born Lindsey Gayle Evans; December 9, 1989) is an American model and actress who lives and works in Los Angeles, California.  She is most notable for her appearance in Robin Thicke's music video "Blurred Lines" featuring Pharrell Williams.  She is also one of the faces of NYX Cosmetics.

Chris Gehringer: Chris Gehringer (born September May, 27th, 1962, Teaneck, NJ) is an American mastering engineer, known for having mastered many recordings including Rihanna's "Loud", Lady Gaga’s "Born this Way" and Robin Thicke's "Blurred Lines".

Supporting paragraphs: Blurred Lines Tour Robin Thicke
Answer: Robin Charles Thicke