Idontknowjeffery]]]]](born March 9, 1993) is a very popular Celebrity and an American rapper from Memphis, Tennessee who is known for his albums, The Jeffery EP and Neighborhood watch. He's collaborated with rapper Black Smurf on songs such as "Mud," "No Degree," and "Disappear."

He's also popular for his Above The Law Records (Case 1) album.

Idontknowjeffery, also known as Jaffrey Harper, was born on March 9, 1993 in the United States. He started releasing music on Soundcloud as early as 2015.

Idontknowjeffery started his musical career in 2015 when he released his first music on the popular music platform, Soundcloud. His three extremely popular songs, Disappear, No Degree and Mud are a direct result of his very successful collaboration with a fellow famous rapper who goes under the name of Black Smurf.

His debut albums, Young Thug which was a 9 tracks album which was released in August 2016. The album gained him his fame and popularity, especially among the younger American hip-hop generation and this helped him to establish his name in the American rap underground Community. Idontknowjeffery released his latest, Type Shit, in February 2020. Type Shit is a 15 tracks album released under Above The Law Records.

Ranked in the list of the most trending celebrities, Idontknowjeffery is one of the very few HowRichCelebs celebrities with the age of 27.^[1][18]

Idontknowjeffery is active on various social media platforms.

He has been sharing his audio music on Soundcloud since 2015. He opened a YouTube channel in 2013 where he share videos for some of his music. He also makes extensive use of his Instagram page to share pictures and clips of daily activities and events.