Dr. Jeckyll & Mr. Hyde was an American 1980s hip-hop group consisting of Andre "Dr. Jeckyll" Harrell and Alonzo "Mr. Hyde" Brown. The group was known for its corporate business image, wearing designer suits and ties while they rapped. The group first performed under the name Harlem World Crew and recorded on Tayster and Rojac Records in 1980.

Alonzo Brown joined Profile Records in 1981 under the name "Lonnie Love," and recorded the song "Young Ladies."