Background: Morello was born on May 30, 1964, in Harlem, New York, to Ngethe Njoroge and Mary Morello. Morello, an only child, is the son of an American mother of Italian and Irish descent and a Kikuyu Kenyan father. His mother was a schoolteacher from Marseilles, Illinois, who earned a Master of Arts at Loyola University, Chicago and traveled to Germany, Spain, Japan, and Kenya as an English language teacher between 1977 and 1983. His father participated in the Mau Mau Uprising and was Kenya's first ambassador to the United Nations.
Context: Morello is famed for his guitar style, which consists of heavy metal/punk hybrid riffs and hip hop-inspired sounds. A 1993 Melody Maker live review of a Rage Against The Machine gig, said "Guitarist Tom Morello wears his guitar high up to wring every sound out of it. Falling bombs, police sirens, scratching - he can do them all." To produce his guitar sounds, Morello chooses various effects pedals. During his tenure in RATM, he used a Dunlop Cry Baby, a DigiTech WH-1 Whammy, a Boss DD-2 Digital Delay, a DOD EQ pedal (set flat and just used to boost the volume during guitar solos or particular rocking moments), and an Ibanez DFL Flanger. Around the time of The Battle of Los Angeles he added a Boss TR-2 Tremolo pedal (which can be heard on "Guerrilla Radio"). For Audioslave, Morello replaced the Ibanez Flanger with an MXR Phase 90. His amplifier of choice has always been a 50-watt Marshall JCM 800 2205 and a Peavey 4x12 cabinet. While the Marshall amplifier has two channels, he only uses the overdrive channel, and simply lowers the volume on his guitar to get cleaner sounds. In the studio, Morello uses the same setup for the bulk of the guitar tracks. For The Battle of Los Angeles, he also used a few other amplifiers, such as a Line 6 as heard on the clean, spacey intro of "Mic Check", plus a Pignose mini-amplifier and a MusicMan "Twin" style amplifier. During the recording of Audioslave's last album, Revelations, Morello experimented with different amplifier setups. For the title track's solo he split his signal to his standard Marshall 2205 head and Peavey cabinet and a 100 watt Fender Bassman head and an Orange cabinet. With delay sent to one while the other is unaffected the sound is being "ping-ponged" between the two amplifiers. He also borrowed a Vox AC30 amplifier from producer Brendan O'Brien for some tracks. Morello's unique technique and talent led to him being voted the fifth greatest guitarist of the past 30 years in a 2010 BBC poll.
Question: How did he learn this method?
Answer:

Background: Kanjani Eight (Guan ziyani[?](eito), Kanjani Eito, stylized as Kanjani[?]) is a seven-member Japanese boy band from Japan's Kansai region. They are managed by the multimedia talent agency, Johnny & Associates, and signed to Imperial Records. The group was formed in 2002 and made their CD debut in 2004 as "Johnny's modern enka group", though after the year 2006, their sound and style has become a mix of pop and rock. Like the rest of the acts managed under Johnny & Associates, Kanjani Eight also perform in various other areas of the Japanese entertainment industry such as variety show hosting, television, movie, and stage acting, and radio talk show hosting.
Context: Kanjani Eight was the combination of the four top leading Kansai Juniors of the "Junior golden age" and the newly popular V. West (Five West), a rock band Kansai Junior unit. Prior to the creation of the group, Subaru Shibutani, Yuu Yokoyama, Shingo Murakami, and Ryo Nishikido were one of the top leading juniors of the time, headlining many Junior hosted programs and acting in dramas. After the debuts of Arashi and Tackey & Tsubasa, the golden era was suddenly coming to an end and so was their popularity. By the year 2001 all their activity had slowed down to magazine photoshoots. On the contrary, a new Kansai Junior unit named V. West was taking off in popularity, more so than their eastern counterpart FiVe. The group consisted of Ryuhei Maruyama, Shota Yasuda, Hiroki Uchi, Kiyohito Mizuno, and Tooru Imayama. The group became so popular that by 2001 they had their own television show, Weekly V. West. But, when Mizuno and Imayama left Johnny's & Associates, worry had begun to creep within unit as to their fate within the talent agency. In 2002, after the end of Weekly V. West, a new program was created to replace it on Kansai TV Channel 8 entitled J3Kansai (pronounced as J Cube Kansai). This show brought together the top leading Kansai Juniors of the golden age and V. West creating the new Junior group, Kanjani, a portmanteau of the words Kansai Johnny's. With the success of the stage play, Another, the group became official garnering the name Kanjani Eight. The "8" stood for the channel that the show J3Kansai aired on. Tadayoshi Ohkura had been added to the group as a drummer and then as an official member in the 12 episode finalizing the group as an eight-member group. Kanjani Eight, as a newly formed group, held their first concert in December 2002, titled " Kanjani Eight Xmas Party 2002 ". This concert ended up becoming a yearly tradition before ending in 2005. It was also the birthplace of the group's signature act, Kanjani Sentai Eight Ranger. In 2003, Kanjani Eight members Nishikido and Uchi were called to go to Tokyo to become a part of NEWS, another Johnny & Associates group.
Question: What two groups combined?
Answer:
Kansai Juniors of the "Junior golden age" and the newly popular V. West (Five West