Hip-hop star Paul Wall has launched a new musical application for mobile phones to help aspiring rappers hone their skills.
The Grillz hitmaker has partnered with Jump Shot Media to create Battle Rap Stars, a new programme which uses voice-analysis to assign users a score based on their rhythm, rhyme and vocal presence.
The game requires players to compete against five other rappers before making it to a final round, which features a clash with Wall. The application also contains a karaoke mode for those struggling to come up with their own original lyrics.
Wall says, "I am incredibly excited to be part of this game. The technology is amazing and the game is just plain fun. Whether you are trying to perfect your skills on the mic or just want to have fun, this game really delivers."