Gary Maurice "Joyner" Lucas Jr. (born August 17, 1988) is an American rapper. Lucas first gained exposure online with his 2015 single "Ross Capicchioni". After three self-released projects, he signed with Atlantic Records to release his fourth mixtape and major label debut, 508-507-2209 (2017). That same year, his political single, "I'm Not Racist", quickly went viral, received gold certification by the Recording Industry Association of America (RIAA), and was nominated Best Music Video at the 61st Grammy Awards. His remixes of then-popular SoundCloud rap songs, such as Lil Pump's "Gucci Gang", have also gained recognition.

His 2018 single, "Stranger Things" (with Chris Brown), marked his first entry on the Billboard Hot 100, and that same year, he guest appeared on Eminem's single "Lucky You", which peaked within the chart's top ten. He parted ways with Atlantic to self-release his debut studio album, ADHD (2020), which peaked at number ten on the Billboard 200. His second and third album, Not Now, I'm Busy (2023) and ADHD 2 (2025), both moderately entered the chart and witnessed overall critical declines.

Outside of music, Lucas co-founded the music technology platform Tully in 2015, with manager Dhruv Joshi.

Gary Maurice Lucas Jr. was born on 17 August 1988, in Worcester, Massachusetts. He began rapping at the age of 10, and attended South High Community School in Worcester.

Joyner Lucas first started rapping under the name G-Storm, but by 2007 had changed his stage name to Future Joyner and started working with his cousin Cyrus tha Great, forming a group called Film Skool Rejekts. That year they released Workprint: The Greatest Mixtape of All Time. Lucas released his first solo mixtape, titled Listen to Me, in 2011. After rapper Future came to prominence, Lucas dropped the "Future" from his name and continued as Joyner Lucas. He released his first mixtape under this new moniker in 2013, titled LFO's (Low Frequency Oscillators). His next mixtape, Along Came Joyner, was released on April 1, 2015. This mixtape contained his critically acclaimed "Ross Capicchioni". Following the success of the song, Lucas was featured in the 2015 BET Hip-Hop Awards Cypher. Originally intended to appear in the online-only cypher, he was later promoted to rap as part of the live broadcast cyphers based on the strength of his initial performance.

Lucas signed to Atlantic Records on September 21, 2016. Lucas went on to release a project titled 508-507-2209 on June 16, 2017, with Atlantic Records. The mixtape charted at #7 on the Heatseekers Albums chart on Billboard and contained the singles "I'm Sorry", "Ultrasound", "Just Like You" and "Winter Blues". Ever since 2016, Lucas has also become known for remixing popular hip hop songs.

On November 28, 2017, Lucas released the single "I'm Not Racist" via his YouTube channel. The music video quickly went viral and gained critical acclaim. The controversial song is about race and society, and race relations from the perspectives of a white man and a black man. The video was nominated for the Grammy Award for Best Music Video at the 61st Grammy Awards, but lost to Childish Gambino's "This Is America". Lucas and Chris Brown announced a collaborative project titled Angels & Demons on February 25, 2018, with the project's first single "Stranger Things" releasing the following day. On April 1, 2018, Lucas released the single "Frozen", a song focused on different forms of reckless driving. The second single from the Angels and Demons collaborative mixtape, "I Don't Die", was released on May 2.

On December 24, 2018, it was announced that Lucas departed from Atlantic Records.