 Complete the following phrase:  In October 2011, Paul Wall collaborated with Silicon Valley-based social and mobile game company Jump Shot Media to create the worlds first mobile battle rap game, Battle Rap Stars. Paul is featured as the main event and is the rapper to beat in order to win the game. On March 7, 2012 Paul Wall released a mixtape entitled No Sleep Til Houston. Paul Wall released a collaboration mixtape with Slim Thug for the 