Question:
Harry Lillis "Bing" Crosby Jr. (; May 3, 1903 - October 14, 1977) was an American singer and actor. Crosby's trademark warm bass-baritone voice made him one of the best-selling recording artists of all time, having sold over one billion analog records and tapes, as well as digital compact discs and downloads around the world.
Initial successes with Whiteman were followed by disaster when they reached New York and Whiteman considered letting them go. Bing may have been retained as Whiteman was already using him as a solo performer on record, but the prospects for Rinker were bleak. However, the addition of pianist and aspiring songwriter Harry Barris made the difference and "The Rhythm Boys" were born. The additional voice meant the boys could be heard more easily in the large New York theaters and eventually became a success. A year touring with Whiteman performing and recording with musicians Bix Beiderbecke, Jack Teagarden, Tommy Dorsey, Jimmy Dorsey, Eddie Lang and Hoagy Carmichael, provided valuable experience and began touring. Crosby then matured considerably as a performer and was in constant demand as a solo artist.  Crosby soon became the star attraction of the Rhythm Boys, and in 1928 he had his first number one hit with the Whiteman orchestra, a jazz-influenced rendition of "Ol' Man River". In 1929, the Rhythm Boys appeared in the film The King of Jazz with Whiteman but Bing's growing dissatisfaction with Whiteman led to the Rhythm Boys leaving his organization. They joined the Gus Arnheim Orchestra performing nightly in The Coconut Grove of the Ambassador Hotel. Singing with the Arnheim Orchestra, Bing's solos began to steal the show, while the Rhythm Boys act gradually became redundant. Harry Barris wrote several of Crosby's subsequent hits including "At Your Command", "I Surrender Dear", and "Wrap Your Troubles In Dreams". In the early months of 1931, a solo recording contract came Bing's way, Mack Sennett signed him to make film shorts and a break with the Rhythm Boys became almost inevitable. Bing had married Dixie Lee in September 1930 and after a threatened divorce in March 1931, he started to apply himself seriously to his career. His gramophone records in 1931 broke new ground as his powerful and emotional singing started to change the face of popular music forever.  Their low salaries at the Cocoanut Grove of the Ambassador Hotel had led the Rhythm Boys to walk out, causing union problems for Bing. Bing's brother, Everett, interested Bill Paley of CBS in his brother and Paley beckoned Bing to come to New York. A settlement was reached with the Ambassador Hotel and Bing made his first solo national radio broadcast in September 1931 and then went on to star at the New York Paramount Theatre.
Answer this question using a quote from the text above:

anything interesting happen?

Answer:
Their low salaries at the Cocoanut Grove of the Ambassador Hotel had led the Rhythm Boys to walk out, causing union problems for Bing.

Answer the question at the end by quoting:

Daron Vartan Malakian (Armenian: Taron/Taron Vardan Malak`ean, born July 18, 1975) is an Armenian-American singer-songwriter, multi-instrumentalist, and record producer. He is best known as the guitarist, songwriter and second vocalist of the heavy metal band System of a Down and as the lead vocalist, lead guitarist and songwriter of the band Scars on Broadway. Daron Malakian is known for his distinctive playing and is ranked 40th in Loudwire's list of Top 50 Hard Rock + Metal Guitarists Of All Time and #11 in MusicRadar's poll, The 20 Greatest Metal Guitarists Ever.
In 2003, Daron Malakian (lead guitar and vocals), Greg Kelso (rhythm guitar), Casey Chaos (vocals), and Zach Hill (drums) recorded a demo tape entitled Ghetto Blaster Rehearsals, credited to the name Scars on Broadway. However, in 2007, an official letter appeared on the band's website that stated that these tracks are not in any way affiliated with Malakian's later project Scars on Broadway. Incidentally, these demo sessions produced "B.Y.O.B.", which would be a major hit for System of a Down in 2005.  Following System's hiatus, Malakian announced his latest project - Scars on Broadway - a band which would include System of a Down bassist, Shavo Odadjian, and himself. Ultimately, Odadjian was not involved with the band, and instead System of a Down drummer, John Dolmayan became a member. After Malakian and Dolmayan experimented with different musicians (for a period of nine months in 2007 - 2008) the band took form and forged its sound in intense rehearsals and recording sessions (under Malakian's direction at his home studio and Sunset Sound) with musicians Danny Shamoun on keyboards, Dominic Cifarelli on bass, and Franky Perez on guitar and backing vocals for live performances (in the studio Malakian played nearly all the instruments with the exception of drums which were played by Dolmayan and some overdubs provided by the other members). The group released an eponymous album in 2008, which featured the hit single "They Say" (written by Malakian). However, shortly before the tour supporting the album, Malakian cancelled all scheduled concert and TV appearances, blaming a lack of enthusiasm and that his "heart wasn't into touring." This sudden cancellation prompted speculation and rumors that the band had broken up. It was the last that would be heard of Malakian for more than a year.  In August 2009, Scars on Broadway, minus Malakian, traveled to Iraq for a USO tour across the U.S. army bases. Their setlist consisted of covers as well as a few Scars songs. Guitarist/vocalist Franky Perez stated on his Twitter that "the Scars tunes sound amazing but they're not the same without D..." He also stated before they left that Malakian had given them his blessing. In 2009 Franky Perez mentioned on his Twitter that he and the D-Man (Malakian) were going into studio to jam, this was the first news people have heard about Malakian's whereabouts for about a year.  On May 2, 2010, Malakian reunited with Scars on Broadway at the Troubadour in West Hollywood. It was the first time he had performed with the band since October 2008. The group played songs from their album as well as new songs. Odadjian performed with the band for two songs, playing guitar.  On February 24, 2012, System of a Down announced that the Scars on Broadway website is back online featuring a preview of a new song called "Guns Are Loaded".

When did he become a part of Scars on Broadway?
In 2003, Daron Malakian