Question: Who has the highest scope of profession in Paul Rodgers or Bill Kaulitz
Context: The discography of Tokio Hotel, a German rock group, consists of four studio albums, two live albums, one EP, one compilation album, seventeen singles, twenty-one music videos, and five video albums.  Tokio Hotel was formed in 2001 in Magdeburg, Germany, by singer Bill Kaulitz, guitarist Tom Kaulitz, drummer Gustav Schäfer and bassist Georg Listing.  The group's debut single, "Durch den Monsun", entered the German singles chart at Number 15 on 20 August 2005, and reached Number 1 the following week.  It also reached Number 1 on the Austrian singles chart.  It was followed up with the single "Schrei", which failed to match the success of "Durch den Monsun"; its highest chart position was Number 3 in Austria.  The band released their debut album, "Schrei", on 19 September 2005.  It topped the charts in Germany and Austria, and was certified Platinum by the German and Austrian affiliates of the International Federation of the Phonographic Industry (IFPI) and by the Syndicat National de l'Édition Phonographique (SNEP) in France.  In 2006, a third and fourth single, "Rette mich" and "Der letzte Tag", were released; both reached Number 1 in Germany and Austria.  The lead single from Tokio Hotel's second album, "Zimmer 483", was "Übers Ende der Welt", released on 26 January 2007.  It became Tokio Hotel's fourth single to have reached Number 1 on the German and Austrian charts.  "Zimmer 483" was released on 23 February 2007, and reached the top spot on the German albums chart.  The album's second single, "Spring nicht", was released on 7 April, charting at Number 3 in Germany, 7 in Austria, and 21 in Switzerland.  "Zimmer 483" was certified gold in three countries. Run Run Run is a song originally written by Joacim Persson, Ry Cuming, and David Jost, recorded by the German recording band Tokio Hotel and American recording artist Kelly Clarkson featuring John Legend in separate versions for their respective studio albums "Kings of Suburbia" (2014) and "Piece by Piece" (2015).  Produced by Tom Kaulitz and Bill Kaulitz, and Persson; with additional writing by Bill Kaulitz, Tom Kaulitz, and Johan Alkenas, Tokio Hotel released their version as the first promotional single from "Kings of Suburbia" on 12 September 2014.  Clarkson later released her version, produced by Jason Halbert with additional writing by Tim James and Antonina Armato of the musical duo Rock Mafia, as the third promotional single from "Piece by Piece" on February 25, 2015. Tokio Hotel is a German rock band, founded in 2001 by singer Bill Kaulitz, guitarist Tom Kaulitz, drummer Gustav Schäfer, and bassist Georg Listing.  Their sound encompasses multiple genres, including pop rock, alternative rock, and electropop.  The quartet have scored four number-one singles and have released three number one-albums in their native country.  The band has sold more than 10 million CDs worldwide. Paul Bernard Rodgers (born 17 December 1949) is an English singer, songwriter and musician, best known for his success in the 1960s and 1970s as vocalist of Free and Bad Company.  He now lives in Canada as a naturalized Canadian citizen.  After stints in two less successful bands in the 1980s and early 1990s, The Firm and The Law, he became a solo artist.  He has more recently toured and recorded with Queen.  Rodgers has been dubbed "The Voice" by his fans.  A poll in "Rolling Stone" magazine ranked him number 55 on its list of the "100 Greatest Singers of All Time".  In 2011 Rodgers received the British Academy's Ivor Novello Award for Outstanding Contribution to British Music. Queen + Paul Rodgers Tour was a world concert tour by Queen guitarist Brian May and drummer Roger Taylor, joined by singer Paul Rodgers under the moniker of Queen + Paul Rodgers.  The tour was Queen's first since The Magic Tour in 1986, and the death of lead singer Freddie Mercury in November 1991.  The band's drummer Roger Taylor commented; "We never thought we would tour again, Paul (Rodgers) came along by chance and we seemed to have a chemistry.  Paul is just such a great singer.  He's not trying to be Freddie."  Bassist John Deacon also did not take part due to his retirement in 1997, however he gave the enterprise his blessing. Now is the third studio album by English rock musician Paul Rodgers, of Free and Bad Company fame.  Released on 17 June 1997, "Now" is Paul Rodgers' second solo work of original material, following 1983's "Cut Loose".  Now the album is more known as a part of 2-CD set, "Now & Live" including a disc of the 1995 live performance at which Rodgers performed many Free and Bad Company favourites. The Cosmos Rocks is the only studio album by Queen + Paul Rodgers, released on 15 September 2008.  It contains 14 new tracks written by Brian May, Roger Taylor, and Paul Rodgers.  This is the first studio album of new material from the two remaining members of Queen since 1995′s "Made in Heaven", and is the only studio collaboration to date with Paul Rodgers. Electric (fully as Paul Rodgers Electric according to Paul Rodgers official site) is a studio album by Paul Rodgers of Free and Bad Company fame.  It was recorded in 1999 at Lartington Hall Studios near Barnard Castle in the North East of England.  Electric was released in 2000 (the Japanese version of 1999 has a bonus track). Bill Kaulitz (born September 1, 1989), also known mononymously as Billy (stylized as BILLY) for his solo act, is a German singer, songwriter, voice actor, designer, and model.  He is best known for his work from 2001 to the present as the lead singer of the band Tokio Hotel. Loitsche is a village and a former municipality in the Börde district in Sachsen-Anhalt, Germany.  Since 1 January 2010, it is part of the municipality Loitsche-Heinrichsberg.  This is where Tokio Hotel singer Bill Kaulitz and guitarist Tom Kaulitz grew up.
Answer: Bill Kaulitz