O'Shea Jackson Jr. (born February 24, 1991), also known by the stage name OMG, is an American actor, rapper and songwriter. He is the oldest son of rapper and actor Ice Cube and, in his feature film debut, portrayed his father in the 2015 biopic Straight Outta Compton.

He has two brothers, Darryl and Sharif, and a sister Kareema. His brother Darryl is also a rapper under the name Doughboy, which is the nickname of the character his father portrayed, Darin "Doughboy" Baker, in his first film Boyz n the Hood.

In June 2014, it was announced that he had been cast to portray his father in Straight Outta Compton, a biographical film about N.W.A. The film was released on August 14, 2015. Jackson is noted for his physical resemblance to his father, which Ice Cube described as "spot on." "He was born to play the part," he told Jimmy Kimmel in October 2014.

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小奥谢·杰克逊（O'Shea Jackson Jr.，1991年2月24日-），艺名OMG美国演员、说唱歌手和词曲作者。