Jason L. Martin (born May 8, 1987; stylized as JasonMartin), formerly known by the stage name Problem, is an American rapper, songwriter, and record producer from Compton, California.

[4] He entered the industry by writing a verse for producer Terrace Martin for his song "Be Thankful", featured on Snoop Dogg's compilation album The Big Squeeze.

He was credited on the 2008 single "Head of My Class" by rapper Scooter Smiff featuring Chris Brown, and made his first mainstream recording appearance on Snoop Dogg's album Malice N Wonderland (2008).

Since then, Martin has worked with numerous artists such as Jamie Foxx, the Game, Kendrick Lamar, Bobby V, 9th Wonder, Chris Brown, Wiz Khalifa, Nipsey Hussle, Warren G, Childish Gambino, Pharrell Williams, Jim Jones, Travis Barker, and John Legend, among others.

[8] On June 13, 2013, he released the mixtape The Separation, which contains guest appearances from Wale, T.I., Snoop Dogg, Game, Chris Brown, Tank, Tyga and Wiz Khalifa, among others.

[12] Martin appeared in a branded music video alongside Neil Patrick Harris for the drink product Neuro in February 2014.

[21] His musical influences are Eminem, N.W.A, the Isley Brothers, Prince, Aaliyah, R. Kelly, Baby Bash, Lil Wayne, the Temptations, DJ Quik, the Jacksons, and the group DeBarge.