Question: Saul Hudson was born in Hampstead, London. He was named for Saul Steinberg, an artist. His mother, Ola J. Hudson (nee Oliver; 1946-2009), was an African-American costume designer, whose clients included David Bowie, and his father, Anthony Hudson, is an English artist who created album covers for musicians such as Neil Young and Joni Mitchell., Of his mixed background, Slash later remarked, "As a musician, I've always been amused that I'm both British and black; particularly because so many American musicians seem to aspire to be British while so many British musicians, in the 'Sixties in particular, went to such great pains to be black."

In September 2008, Slash began production on his debut solo album. He described the process of recording by himself as "cathartic." He also mentioned working on the album gave him a chance to "...take a little bit of a break from all the politics and the democracy that is a band and just sort of do my own thing for a little bit. Slash's wife Perla revealed that many different artists would appear on the album, saying, "It's going to be Slash and friends, with everyone from Ozzy to Fergie." The album, simply titled Slash, debuted at No. 3 on the U.S. chart upon its release in April 2010. It featured an all-star roster of guest musicians, including Osbourne, Fergie of The Black Eyed Peas, Adam Levine of Maroon 5, M. Shadows of Avenged Sevenfold, Lemmy Kilmister of Motorhead, Dave Grohl, Chris Cornell and Iggy Pop. The album also features musical collaborations with former Guns N' Roses members Izzy Stradlin, Steven Adler and Duff McKagan. To promote the album, Slash embarked on his first solo world tour with Myles Kennedy of Alter Bridge--who also appeared on the album--on vocals, Bobby Schneck on rhythm guitar, Todd Kerns on bass, and Brent Fitz on drums. Slash opened for Ozzy Osbourne for a leg of Osbourne's Scream World Tour. Slash began working on his second solo album in June 2011. He collaborated with his touring bandmates Myles Kennedy, Todd Kerns, and Brent Fitz, with the resulting album billed to "Slash featuring Myles Kennedy and The Conspirators". The album, titled Apocalyptic Love, was released on May 22, 2012, debuting at #2 on the Canadian Albums Chart. In the beginning of 2013 Slash received award for "Best Guitarist Of The Year 2012" by Loudwire's readers. Slash embarked on a tour in the summer of 2014, opening for Aerosmith as part of the Let Rock Rule Tour. In May 2014, Slash revealed details of his third solo album World on Fire. The album was again billed as "Slash featuring Myles Kennedy and The Conspirators" and was released on September 10, 2014. It debuted at No. 10 on The Billboard 200 chart. In March 2018, Slash revealed that a new album with Myles Kennedy and The Conspirators to be released in Fall 2018. The group will kick off a tour in September 2018, starting with a show in Del Mar, California at the KAABOO Del Mar Music Festival.

Using a quote from the above article, answer the following question: where did he tour
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Answer:

Problem: "Louie Louie" is an American rhythm and blues song written by Richard Berry in 1955 and best known for the 1963 hit version by The Kingsmen. It has become a standard in pop and rock, with hundreds of versions recorded by different artists. The song is based on the tune "El Loco Cha Cha" popularized by bandleader Rene Touzet and is an example of Latin influence on American popular music. "Louie Louie" tells, in simple verse-chorus form, the first-person story of a Jamaican sailor returning to the island to see his lady love.

Richard Berry was inspired to write the song in 1955 after listening to and performing the song "El Loco Cha Cha" with Ricky Rillera and the Rhythm Rockers. The tune was written originally as "Amarren Al Loco" ("Tie up the crazy guy") by Cuban bandleader Rosendo Ruiz Jr., also known as Rosendo Ruiz Quevedo, but became best known in the "El Loco Cha Cha" arrangement by Rene Touzet which included a rhythmic ten-note "1-2-3 1-2 1-2-3 1-2" riff. Touzet performed the tune regularly in Los Angeles clubs in the 1950s. In Berry's mind, the words "Louie Louie" superimposed themselves over the bass riff. Lyrically, the first person perspective of the song was influenced by "One for My Baby (And One More for the Road)", which is sung from the perspective of a customer talking to a bartender (Berry's bartender's name is Louie). Berry cited Chuck Berry's "Havana Moon" and his exposure to Latin American music for the song's speech pattern and references to Jamaica. Richard Berry released his version in April 1957 (Flip Records 321), originally as a B-side, with his backing band the Pharaohs, and scored a regional hit on the west coast, particularly in San Francisco. When the group toured the Pacific Northwest, local R&B bands began to play the song, increasing its popularity. The track was then re-released as an A-side. However, the single never charted on Billboard's national rhythm and blues or pop charts. Berry's label reported that the single had sold 40,000 copies. After a series of unsuccessful follow-ups, Berry sold his portion of publishing and songwriting rights for $750 to the head of Flip Records in 1959. While the title of the song is often rendered with a comma ("Louie, Louie"), in 1988, Berry told Esquire magazine that the correct title of the song was "Louie Louie", with no comma. Although similar to the original, the version on Rhino's 1983 The Best of Louie, Louie compilation is actually a note-for-note re-recording created because licensing could not be obtained for Berry's 1957 version. The original version was not released on CD until the Ace Records Love That Louie compilation in 2002.

How did Berry come up with the song?

Answer with quotes:
after listening to and performing the song "El Loco Cha Cha" with Ricky Rillera and the Rhythm Rockers.