Background: J. R. Cash was born on February 26, 1932 in Kingsland, Arkansas, to Ray Cash and Carrie Cloveree (nee Rivers). He was the fourth of seven children, who were in birth order: Roy, Margaret Louise, Jack, J. R., Reba, Joanne, and Tommy (who also became a successful country artist). He was primarily of English and Scottish descent. As an adult he traced his surname to 11th-century Fife, after meeting with the then-laird of Falkland, Major Michael Crichton-Stuart.
Context: Cash began performing concerts at prisons starting in the late 1950s. He played his first famous prison concert on January 1, 1958, at San Quentin State Prison. These performances led to a pair of highly successful live albums, Johnny Cash at Folsom Prison (1968) and Johnny Cash at San Quentin (1969). Both live albums reached number 1 on Billboard country album music and the latter crossed over to reach the top of the Billboard pop album chart. In 1969 Cash became an international hit when he eclipsed even the Beatles by selling 6.5 million albums. In comparison, the prison concerts were much more successful than his later live albums such as Strawberry Cake recorded in London and Live at Madison Square Garden, which peaked at #33 and #39 on the album charts respectively.  The Folsom Prison record was introduced by a rendition of his "Folsom Prison Blues," while the San Quentin record included the crossover hit single "A Boy Named Sue," a Shel Silverstein-penned novelty song that reached No. 1 on the country charts and No. 2 on the U.S. Top Ten pop charts. The AM versions of the latter contained profanities which were edited out of the aired version. The modern CD versions are unedited thus making them longer than the original vinyl albums, though they retain the audience reaction overdubs of the originals.  Cash performed at the Osteraker Prison in Sweden in 1972. The live album Pa Osteraker ("At Osteraker") was released in 1973. "San Quentin" was recorded with Cash replacing "San Quentin" with "Osteraker". In 1976, a further prison concert, this time at Tennessee Prison, was videotaped for TV broadcast and received a belated CD release after Cash's death as A Concert Behind Prison Walls.
Question: When did he start perfoming
Answer: starting in the late 1950s.

Background: Tinariwen (Tamasheq: , with vowels , pronounced tinariwen "deserts", plural of tenere "desert") is a Grammy Award-winning group of Tuareg musicians from the Sahara Desert region of northern Mali. The band was formed in 1979 in Tamanrasset, Algeria, but returned to Mali after a cease-fire in the 1990s. The group first started to gain a following outside the Sahara region in 2001 with the release of The Radio Tisdas Sessions, and with performances at Festival au Desert in Mali and the Roskilde Festival in Denmark. Their popularity rose internationally with the release of the critically acclaimed Aman Iman in 2007.
Context: In 1998, Tinariwen came to the attention of the French world music ensemble Lo'Jo and their manager Philippe Brix. That group traveled to a music festival in Bamako and met two members of the Tinariwen collective. In 1999 some members of Tinariwen traveled to France and performed with Lo'Jo under the name Azawad. The two groups organized the January 2001 Festival au Desert in Essakane, Mali with Tinariwen as the headliners, and in close cooperation with the Belgian Sfinks Festival. The festival brought much outside attention to Tinariwen. By the end of 2001, Tinariwen had performed at WOMAD and Roskilde. Their debut CD, The Radio Tisdas Sessions, was recorded by Justin Adams and Jean-Paul Romann at the radio station of the same name (the only Tamashek-speaking station in Kidal, Mali) and released in 2001. It was Tinariwen's first recording to be released outside of northern Africa.  Since 2001 Tinariwen have toured regularly in Europe, North America, Japan, and Australia; often appearing at large world music/alternative festivals like Glastonbury, Coachella, Roskilde, Les Vieilles Charrues, WOMAD, FMM Sines, and Printemps de Bourges. Tinariwen gained more attention overseas in 2004, with their first UK performance at the largest free African music festival in the country, Africa Oye. Their 2004 album Amassakoul ("The Traveller" in Tamashek) and its 2007 follow-up Aman Iman ("Water Is Life" in Tamashek) were released worldwide and gained the notice of celebrity fans including Carlos Santana, Robert Plant, Bono and the Edge of U2, Thom Yorke of Radiohead, Chris Martin of Coldplay, Henry Rollins, Brian Eno, and TV On The Radio. In 2005 Tinariwen received a BBC Award for World Music, and in 2008 they received Germany's prestigious Praetorius Music Prize.  Also since 2001, the Tinariwen collective has added several younger Tuareg musicians who did not live through the military conflicts experienced by the older members but have contributed to the collective's multi-generational evolution. New members include bassist Eyadou Ag Leche, percussionist Said Ag Ayad, guitarist Elaga Ag Hamid, guitarist Abdallah Ag Lamida, and vocalists Wonou Walet Sidati and the Walet Oumar sisters. The band's 2009 album Imidiwan (Tamashek for "Companions") was recorded in a mobile studio by Jean-Paul Romann in the village of Tessalit, Mali.
Question: What happened in 1998?
Answer: In 1998, Tinariwen came to the attention of the French world music ensemble Lo'Jo and their manager Philippe Brix.

Background: Blues Traveler is an American rock band formed in Princeton, New Jersey in 1987. The band's music covers a variety of genres, including blues rock, psychedelic rock, folk rock, soul, and Southern rock. It is known for extensive use of segues in their live performances, and was considered a key part of the re-emerging jam band scene of the 1990s, spearheading the H.O.R.D.E. touring music festival. Currently, the group comprises singer and harmonica player John Popper, guitarist Chan Kinchla, drummer Brendan Hill, bassist Tad Kinchla, and keyboardist Ben Wilson.
Context: On August 20, 1999, Bobby Sheehan was found dead in his New Orleans, Louisiana home, where he had been recording music with some friends the night before. Sheehan's death was ruled an accidental drug overdose, with cocaine, Valium, and heroin found in his system.  The remaining members of Blues Traveler convened and agreed that Sheehan would have wanted them to continue as a band. Auditions for a new bassist were held in concert, and included Chan Kinchla's younger brother Tad, who was unanimously determined to be the best choice for the role. Additionally, an open call was sent for a permanent keyboard player, a role of which Sheehan had often been a proponent. In January 2000, Ben Wilson of the jump blues band Big Dave & the Ultrasonics was chosen, and has since become a central contributor to the band's songwriting.  The band discarded their concept album material, instead releasing a smaller online EP, Decisions of the Sky: A Traveler's Tale of Sun and Storm, and went to work collectively composing a new set of songs with the new lineup. The resulting album was Bridge, which had the working title Bridge Outta Brooklyn as a tribute to Sheehan (with both the acronym B.O.B. and his nickname "Brooklyn Bobby"). The songs "Girl Inside My Head" and "Just for Me" received airplay, but the album's sales fell somewhat short of expectations.  The live album What You and I Have Been Through and the compilation Travelogue: Blues Traveler Classics were both released in 2002.
Question: Who was Sheehan?
Answer:
Auditions for a new bassist