Question: What Dutch footballer has a rap feature in "Wij zijn Ajax"?
Context: Frits Soetekouw (born 16 June 1938 in Amsterdam) is a former Dutch footballer.  He played as a defender at club level between 1961 and 1971.  He played for De Volewijckers, Heracles, Ajax, Eindhoven and DWS.  He briefly captained Ajax, notably in the side's 5–1 win against Liverpool in 1966.  He also once appeared for the Netherlands national team in 1962. Theo Janssen (born 27 July 1981) is a Dutch former footballer who played as a midfielder for various clubs in the Netherlands, including Vitesse Arnhem, Twente and Ajax, as well as on loan for Belgian club Genk.  He spent 10 years with Vitesse before joining Twente in 2008, where he helped them win the Eredivisie and qualify for the Champions League for the first time in their history.  After being named Dutch Footballer of the Year in 2011, he played a season with Ajax, before returning to Vitesse in August 2012. Michael John Reiziger (] , born 3 May 1973) is the current manager of Dutch Eerste Divisie side Jong Ajax, the reserves' team of AFC Ajax.  He is a retired Dutch footballer who played mainly as a right back. Derk Boerrigter (] ; born 16 October 1986) is a Dutch footballer who plays as a winger.  He began his professional career with Ajax, but didn't make any first team appearances and was loaned to Haarlem.  He then played for FC Zwolle and RKC Waalwijk before rejoining Ajax.  He most recently played for Celtic. Demy Patrick René de Zeeuw (] ; born 26 May 1983) is a Dutch footballer who last played for NAC Breda and the Netherlands national football team.  He is a defensive midfielder described as a good tackler and a gifted passer of the ball.  He previously played for AGOVV, Go Ahead Eagles, AZ and AFC Ajax.  While at AZ he was a key player in the squad that won the 2008–09 Dutch league, the club's first championship victory in 28 years.  Following this success he transferred to Ajax, with whom he won the 2009–10 Dutch Cup, and the 2010–11 Dutch league title. Ryan Guno Babel (] ; born 19 December 1986) is a Dutch footballer who plays for Turkish club Beşiktaş.  He can play as a striker or left winger. "Wij zijn Ajax" (Dutch, "We are Ajax") is a song by Ajax and Friends.  A one off single by Dutch association football club AFC Ajax, which features guest vocal by several of the club's first team and women's team players, as well as prominent vocalists from the Netherlands, such as Victor Reinier, Koos Alberts, Dré Hazes, Karin Bloemen, Robert ten Brink, Peter Beense and Glennis Grace.  The song also features rap parts from Darryl, RB Djan and Ryan Babel.  The single was released online as a digital download on SPEC Entertainment, the label owned by popular Dutch rapper Ali B., while the video clip was frequently aired on television at the time of the release. Theodorus "Theo" Johannes Franciscus Brokmann (19 September 1893 – 28 August 1956) was a Dutch footballer who played for Steeds Voorwaarts in the Derde Klasse, and then for Ajax where he played from 1912 to 1925 scoring 78 goals in 175 matches.  He also made one appearance for the Netherlands national team where he became the first Ajax player to ever score for the Dutch national team in 1919. Piet Ouderland (17 March 1933 – 3 September 2017) was a Dutch footballer and basketball player.  As a footballer, he played as a striker for Ajax, AZ Alkmaar and the Netherlands national team.  For Ajax, he made 261 total appearances with the club between 1955 and 1964, becoming a member of Club van 100.  He also made seven appearances with the national team in 1962 and 1963.  As a basketball player, he also played for the national team, making him the first Dutchman to play for the national sides of football and basketball. Dolf van Kol (2 August 1902 – 20 January 1989) was a Dutch footballer who earned 33 caps for the Dutch national side between 1925 and 1931, scoring four goals.  He also participated at the 1928 Summer Olympics.  He played club football for Ajax, and would later go on to manage Ajax from 1942 to 1945.
Answer: Ryan Babel