Question: Which leader singer plays more musical instruments, Matt Shultz or Paul Roberts?

Context paragraphs:
Cage the Elephant: Cage the Elephant is an American rock band from Bowling Green, Kentucky, that formed in 2006 and relocated to London, England in 2008 before their first album was released.  The band currently consists of lead vocalist Matt Shultz, rhythm guitarist Brad Shultz, lead guitarist Nick Bockrath, guitarist and keyboardist Matthan Minster, bassist Daniel Tichenor, and drummer Jared Champion.  Lincoln Parish served as the band's lead guitarist from their formation in 2006 until December 2013, when he left on good terms to pursue a career in producing.  The band's first album, "Cage the Elephant", was released in 2008 to much success, spawning several successful radio singles and gained the band a large following in both the United States and the United Kingdom.

Paul Roberts (musician): Paul Roberts (born 31 December 1959 in Chiswick, London) is an English singer who was the lead singer of The Stranglers between 1990 and 2006.

C.G. Conn: C.G. Conn Ltd., sometimes called Conn Instruments or commonly just Conn, was a United States manufacturer of musical instrument incorporated in 1915.  It bought the production facilities owned by Charles Gerard Conn, a major figure in early manufacture of brasswinds and saxophones in the USA.  Its early business was based mainly on such instruments, which it manufactured in Elkhart, Indiana.  During the 1950s the bulk of its sales revenue shifted to electric organs.  In 1969 the company was sold under bankruptcy to the Crowell-Collier-MacMillan publishing company.  Conn was divested of its Elkhart production facilities in 1970, leaving remaining production in satellite facilities and contractor sources.  The company was sold in 1980 then again in 1985, reorganized under the parent corporation United Musical Instruments (UMI) in 1986.  The assets of UMI were bought by Steinway Musical Instruments in 2000 and in January 2003 were merged with other Steinway properties into a subsidiary called Conn-Selmer.  C.G. Conn is currently a brand of musical instruments manufactured by Conn-Selmer.

Jared Champion: In high school, Champion, with current bandmates Matt Shultz and Brad Shultz, were in a band called Liquid Twilight.  It is unknown when they broke up.

Matt Shultz (singer): Matthew Ray "Matt" Shultz (born October 23, 1983) is the lead singer and occasional guitarist for the American rock band Cage the Elephant.  He also plays guitar on the bonus track "Cover Me Again" from their self-titled album.

Gesellschaft der Freunde alter Musikinstrumente: The Gesellschaft der Freunde alter Musikinstrumente (GEFAM) ("Society of friends of old musical instruments") was founded in 1951 in Zurich, Switzerland, by a number of music lovers and collectors of historical musical instruments.  It is still the only society in the German speaking part of Europe (Germany, Austria, Switzerland, Lichtenstein) that is concerned mainly with old musical instruments.  Thanks to its base in Switzerland it has a multicultural and multilanguage profile, visual in its international list of members.  Today there are around 200 members (individuals and institutions), mainly in Europe, but also on other parts of the globe.  The spectrum includes specialised museums and collections of old musical instruments, researchers and instrument makers as well as private collectors and enthusiasts.

Museum of Musical Instruments (Milan): The Museum of Musical Instruments of Milan exhibits over 700 musical instruments from the fifteenth to twentieth centuries with particular attention to Lombard instruments.  The collection contains plucked instruments, Lombard and Cremonese violins, hunting horns, numerous wood instruments (e.g. flutes, oboes, clarinets, English horns), bassoons, pianos and some ancient organs.  In particular the Cremonese lutherie (from Cremona in low Lombardy) is appreciated all over the world for the high quality of its musical instruments.  The museum also displays the equipment of the former Studio di fonologia musicale di Radio Milano.

K-Klass: K-Klass are a British electronic music group that originally recorded in Wrexham, North Wales, and are now based in Manchester, England.  Its original members were Andy Williams, Carl Thomas, Russ Morgan and Paul Roberts.  K-Klass signed with the label Deconstruction Records, and later to Parlophone.  Since leaving Parlophone Andy Williams and Carl Thomas have both left K-Klass leaving just Paul Roberts and Russell Morgan alongside original vocalist Bobbi Depasois as K-Klass.  Roberts and Morgan run their own record label Klass Action

There's a Star-Spangled Banner Waving Somewhere: "There's A Star-Spangled Banner Waving Somewhere" is a patriotic anthem written in 1942 by Paul Roberts and Shelby Darnell (a pseudonym for producer Bob Miller).  The song was completed, along with other tunes, on Swan's Island, Maine, where Paul Roberts visited and performed with his soon to become wife, Annie Marrithew, during World War II.  The song enjoyed its greatest popularity during the war years.  The "somewhere" in the title of the song refers to an idealistic version of heaven reserved for the brave U.S. soldiers fighting the Axis Powers, somewhat akin to the concept of Valhalla.  The verses are a narrative of a young man who is crippled, but still yearns to fight and earn his place in this patriotic afterlife.

Soulsec: The British band Soulsec (formerly known as The Faithband or the 'Paul Roberts Band') is the solo project of the ex Stranglers frontman Paul Roberts.

Supporting paragraphs: Matt Shultz (singer) Paul Roberts (musician)
Answer: Matthew Ray "Matt" Shultz