Question: Randy Hansen was part of the group that played North American tours with which guitarist and pianist?
Context: The American Beauty/American Psycho Tour was a concert tour by American rock band Fall Out Boy.  Supporting the band's sixth studio album "American Beauty/American Psycho" (2015), the tour visited North America and Europe in 2015.  The North American leg was co-headlined with American rapper Wiz Khalifa under the name The Boys of Zummer.  The Boys of Zummer leg with Wiz Khalifa ranked fifty-ninth for Pollstar's Year End Top 200 North American Tours of 2015, grossing $18.2 million. The Riot Tour was the thirteenth headlining tour by American country music trio Rascal Flatts.  The tour began May 5, 2015, in Cozumel, Mexico and ended on November 7, 2015, in Albuquerque, New Mexico.  It was in support of their ninth studio album "Rewind" (2014).  The tour ranked fifty-seventh for Pollstar's Year End Top 200 North American Tours of 2015, and grossed $18.7 million. The Smoke + Mirrors Tour was the second worldwide concert tour by American alternative rock band Imagine Dragons in support of their second studio album "Smoke + Mirrors" (2015).  The tour had a preview show in Sydney, Australia, on March 17, 2015, before the tour officially began in Santiago, Chile, on April 12, 2015.  It continued through the Americas, Asia, Oceania and Europe until February 5, 2016, in Amsterdam, Netherlands.  The band played 108 shows.  For Pollstar's Year End Top 200 North American Tours of 2015, it was ranked forty-first, and grossed $25.2 million. The Piece by Piece Tour was the eighth headlining concert tour from American pop recording artist Kelly Clarkson, in support of her seventh studio album, "Piece by Piece" (2015).  It began on July 11, 2015, in Hershey, Pennsylvania at the Hersheypark Stadium and concluded on September 10, 2015, in Atlanta.  The tour placed 106th for Pollstar's Year End Top 200 North American Tours of 2015, grossing $9.7 million. Randy Hansen (born December 8, 1954 in Seattle, Washington) is an American guitarist, best known for his "Rock Tribute Act" honoring Jimi Hendrix.  Hansen performs such signatures of Hendrix's style as playing a guitar with his teeth or behind his back.  He composed 17 minutes of the soundtrack for the 1979 movie "Apocalypse Now",(1980 Academy Award Winner for Best Sound).  His debut album was released in 1980 on Capitol Records and was recorded at the Automatt Studios in San Francisco, CA.  with Scott Rosburg on bass and vocals and Charles Tapp on drums and vocals.  That group played two North American tours which included several coliseum shows with Bob Seger, Sammy Hagar, REO Speedwagon, Head East, Triumph, Poco and Blue Öyster Cult. Robert Clark Seger ( , born May 6, 1945) is an American singer-songwriter, guitarist and pianist.  As a locally successful Detroit-area artist, he performed and recorded as Bob Seger and the Last Heard and Bob Seger System throughout the 1960s.  By the early 1970s, he had dropped the 'System' from his recordings and continued to strive for broader success with various other bands.  In 1973, he put together the Silver Bullet Band, with a group of Detroit-area musicians, with whom he became most successful on the national level with the album "Live Bullet" (1976), recorded live with the Silver Bullet Band in 1975 at Cobo Hall in Detroit, Michigan.  In 1976, he achieved a national breakout with the studio album "Night Moves".  On his studio albums, he also worked extensively with the Alabama-based Muscle Shoals Rhythm Section, which appeared on several of Seger's best-selling singles and albums. Jekyll & Hyde is a musical horror-drama loosely based on the novella "The Strange Case of Dr Jekyll and Mr Hyde" by Robert Louis Stevenson.  Originally conceived for the stage by Frank Wildhorn and Steve Cuden, it features music by Wildhorn, a book by Leslie Bricusse and lyrics by Wildhorn, Bricusse and Cuden.  Following a world premiere run in Houston, Texas, the musical embarked on a national tour of the United States prior to its Broadway debut in 1997.  Many international productions have since been staged including two subsequent North American tours, two tours of the United Kingdom, a concert version and a re-vamped US tour in 2012 ahead of a 2013 revival on Broadway. Rock Witchu Tour was the fifth concert tour by American singer-songwriter, Janet Jackson, in support of her tenth studio album "Discipline".  This was Jackson's first tour in nearly seven years.  The tour visited North America.  A Japanese leg was planned for February 2009, however the concert promoters for the Japan dates later cancelled them due to illness and the events of the 2009 economic crisis.  The tour officially ended on November 1, 2008 in New York City.  At the end of 2008, the tour placed 78th on Pollstar's "Top 100 North American Tours", grossing $11.7 million from 16 shows. Jennifer Lopez and Marc Anthony en Concierto (also known as the El Cantante Tour, Jennifer & Marc en Concierto, and simply En Concierto) was a co-headlining concert tour by American recording artists Jennifer Lopez and Marc Anthony.  The tour began on September 28, 2007 and ended on November 7, 2007, reaching North America.  At the end of 2007, the tour placed 59th on Pollstar's "Top 100 North American Tours", earning $13.8 million from 17 shows. "State of Shock" is a 1984 hit single by The Jacksons featuring frontman Michael Jackson and Mick Jagger.  It was written by Jackson and guitarist Randy Hansen.  "State of Shock" charted at number 3 on the US "Billboard" Hot 100 and number 14 on the UK Singles Chart.  The track was originally to be sung with Freddie Mercury as a duet with Jackson, and was later slated for the "Thriller" album; however, due to differing time schedules, Jackson ended up recording it with his brothers and Jagger.  A clip of the song (an instrumental part) was used on the "Immortal" album in 2011.
Answer: Robert Clark Seger